📝 PM Review: Simple Equations

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Question 1 Difficulty 1
Solve for x: x + 3 = 10
  • A 6
  • B 7
  • C 8
  • D 9
💡 Explanation To solve x + 3 = 10, subtract 3 from both sides: x = 10 - 3, so x = 7.
Question 2 Difficulty 1
What is the value of x in the equation x - 4 = 5?
  • A 1
  • B 5
  • C 9
  • D 10
💡 Explanation To find x, add 4 to both sides: x = 5 + 4, so x = 9.
Question 3 Difficulty 1
Find x: 2x = 14
  • A 5
  • B 7
  • C 10
  • D 12
💡 Explanation Divide both sides by 2: x = 14 / 2, so x = 7.
Question 4 Difficulty 1
Solve x + 7 = 15.
  • A 5
  • B 6
  • C 7
  • D 8
💡 Explanation Subtract 7 from both sides: x = 15 - 7, so x = 8.
Question 5 Difficulty 1
What is the value of x in the equation 10 = x + 2?
  • A 6
  • B 7
  • C 8
  • D 9
💡 Explanation Subtract 2 from both sides: x = 10 - 2, so x = 8.
Question 6 Difficulty 1
Find the value of x in x - 6 = 4.
  • A 8
  • B 10
  • C 12
  • D 14
💡 Explanation Add 6 to both sides: x = 4 + 6, so x = 10.
Question 7 Difficulty 1
Solve for x: 3 + x = 9.
  • A 5
  • B 6
  • C 7
  • D 8
💡 Explanation Subtract 3 from both sides: x = 9 - 3, so x = 6.
Question 8 Difficulty 1
What is x if 5x = 25?
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Divide both sides by 5: x = 25 / 5, so x = 5.
Question 9 Difficulty 1
Solve x + 12 = 20.
  • A 6
  • B 7
  • C 8
  • D 9
💡 Explanation Subtract 12 from both sides: x = 20 - 12, so x = 8.
Question 10 Difficulty 1
Find the value of x in 8 = x - 1.
  • A 6
  • B 7
  • C 8
  • D 9
💡 Explanation Add 1 to both sides: x = 8 + 1, so x = 9.
Question 11 Difficulty 2
Solve for x: 2x + 3 = 11.
  • A 4
  • B 3
  • C 5
  • D 6
💡 Explanation Subtract 3 from both sides: 2x = 8, then divide by 2: x = 4.
Question 12 Difficulty 2
What is x in the equation 3x - 5 = 10?
  • A 4
  • B 5
  • C 6
  • D 7
💡 Explanation Add 5 to both sides: 3x = 15, then divide by 3: x = 5.
Question 13 Difficulty 2
Find x if 4(x + 2) = 32.
  • A 6
  • B 5
  • C 4
  • D 3
💡 Explanation Divide both sides by 4: x + 2 = 8, then subtract 2: x = 6.
Question 14 Difficulty 2
Solve for x: x/3 + 4 = 8.
  • A 9
  • B 10
  • C 12
  • D 15
💡 Explanation Subtract 4 from both sides: x/3 = 4, then multiply by 3: x = 12.
Question 15 Difficulty 2
What is the value of x in 5x - 15 = 0?
  • A 1
  • B 3
  • C 5
  • D 6
💡 Explanation Add 15 to both sides: 5x = 15, then divide by 5: x = 3.
Question 16 Difficulty 2
Find x in the equation 7 + 2x = 23.
  • A 8
  • B 9
  • C 10
  • D 11
💡 Explanation Subtract 7 from both sides: 2x = 16, then divide by 2: x = 8.
Question 17 Difficulty 2
Solve x - 10 = 3x - 14.
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Add 10 to both sides: 4 = 2x - 14, then add 14: 18 = 2x, divide by 2: x = 9.
Question 18 Difficulty 2
What is the value of x if 6(x - 1) = 30?
  • A 5
  • B 6
  • C 7
  • D 8
💡 Explanation Divide both sides by 6: x - 1 = 5, then add 1: x = 6.
Question 19 Difficulty 2
Find x in 10 = 2x + 4.
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Subtract 4 from both sides: 6 = 2x, then divide by 2: x = 3.
Question 20 Difficulty 2
Solve for x in the equation 5 + 2x = 19.
  • A 6
  • B 7
  • C 8
  • D 9
💡 Explanation Subtract 5 from both sides: 2x = 14, then divide by 2: x = 7.
Question 21 Difficulty 3
Solve for x: 3(x + 2) = 21.
  • A 5
  • B 6
  • C 7
  • D 8
💡 Explanation Divide by 3: x + 2 = 7, then subtract 2: x = 5.
Question 22 Difficulty 3
What is the value of x in 4x + 2 = 18?
  • A 4
  • B 3
  • C 2
  • D 5
💡 Explanation Subtract 2 from both sides: 4x = 16, then divide by 4: x = 4.
Question 23 Difficulty 3
Find x in 2(x - 3) + 4 = 10.
  • A 5
  • B 6
  • C 7
  • D 8
💡 Explanation Subtract 4: 2(x - 3) = 6, divide by 2: x - 3 = 3, add 3: x = 6.
Question 24 Difficulty 3
Solve for x: 5x - 3 = 2x + 6.
  • A 3
  • B 4
  • C 5
  • D 6
💡 Explanation Subtract 2x: 3x - 3 = 6, add 3: 3x = 9, divide by 3: x = 3.
Question 25 Difficulty 3
What is the value of x if 7 - 3x = 1?
  • A 1
  • B 2
  • C 3
  • D 4
💡 Explanation Subtract 7: -3x = -6, divide by -3: x = 2.
Question 26 Difficulty 3
Solve for x: 4x + 3 = 2(x + 5).
  • A 3
  • B 4
  • C 5
  • D 6
💡 Explanation Expand: 4x + 3 = 2x + 10, subtract 2x: 2x + 3 = 10, subtract 3: 2x = 7, divide by 2: x = 3.
Question 27 Difficulty 3
Find x in 6x - 5 = 3(x + 1).
  • A 1
  • B 2
  • C 3
  • D 4
💡 Explanation Expand: 6x - 5 = 3x + 3, subtract 3x: 3x - 5 = 3, add 5: 3x = 8, divide by 3: x = 2.
Question 28 Difficulty 3
Solve for x: 8 - 2(x + 3) = 0.
  • A 1
  • B 2
  • C 3
  • D 4
💡 Explanation Expand: 8 - 2x - 6 = 0, simplify: 2 - 2x = 0, add 2x: 2 = 2x, divide by 2: x = 1.
Question 29 Difficulty 3
What is the value of x if 10x + 5 = 35?
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Subtract 5: 10x = 30, then divide by 10: x = 3.
Question 30 Difficulty 3
Find x in 2(x + 4) = 3x - 2.
  • A 5
  • B 6
  • C 7
  • D 8
💡 Explanation Expand: 2x + 8 = 3x - 2, subtract 2x: 8 = x - 2, add 2: x = 10.
Question 31 Difficulty 4
Solve for x: 3(2x - 1) + 4 = 10.
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Expand: 6x - 3 + 4 = 10, simplify: 6x + 1 = 10, subtract 1: 6x = 9, divide by 6: x = 3.
Question 32 Difficulty 4
What is the value of x in 4(x - 2) = 2(3x + 1)?
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Expand: 4x - 8 = 6x + 2, add 8: 4x = 6x + 10, subtract 4x: -2x = 10, divide by -2: x = 5.
Question 33 Difficulty 4
Solve for x: 5 + 3(x - 1) = 2x + 7.
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Expand: 5 + 3x - 3 = 2x + 7, simplify: 3x + 2 = 2x + 7, subtract 2x: x + 2 = 7, subtract 2: x = 5.
Question 34 Difficulty 4
What is the value of x if 7(2x + 3) = 42?
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Divide by 7: 2x + 3 = 6, subtract 3: 2x = 3, divide by 2: x = 3.
Question 35 Difficulty 4
Find x in 6x - 2(3x - 4) = 10.
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Expand: 6x - 6x + 8 = 10, simplify: 8 = 10, which is not possible.
Question 36 Difficulty 4
Solve for x: 4x + 1 = 3(2x - 1).
  • A 1
  • B 2
  • C 3
  • D 4
💡 Explanation Expand: 4x + 1 = 6x - 3, subtract 4x: 1 + 3 = 2x, add 2: 4 = 2x, divide by 2: x = 2.
Question 37 Difficulty 4
What is the value of x if 2(3x + 1) = 4x + 6?
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Expand: 6x + 2 = 4x + 6, subtract 4x: 2x + 2 = 6, subtract 2: 2x = 4, divide by 2: x = 2.
Question 38 Difficulty 4
Find x in 2(x + 3) + 4 = 3x - 2.
  • A 4
  • B 5
  • C 6
  • D 7
💡 Explanation Expand: 2x + 6 + 4 = 3x - 2, simplify: 2x + 10 = 3x - 2, subtract 2x: 10 = x - 2, add 2: x = 12.
Question 39 Difficulty 4
What is the value of x if 9x - 4 = 2(3x + 5)?
  • A 2
  • B 3
  • C 4
  • D 5
💡 Explanation Expand: 9x - 4 = 6x + 10, subtract 6x: 3x - 4 = 10, add 4: 3x = 14, divide by 3: x = 14/3.
Question 40 Difficulty 4
Solve for x: 10 = 5 + 2(x - 2).
  • A 5
  • B 6
  • C 7
  • D 8
💡 Explanation Subtract 5: 5 = 2(x - 2), divide by 2: 5/2 = x - 2, add 2: x = 5/2 + 2.
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