Solve for x: 4x + 12 = 52.
Answer and explanation
Correct answer: D. 10
- Step 1: Subtract 12 from both sides: 4x = 40.
- Step 2: Divide by 4: x = 10.
Answer
10.
Why not the others: 11: the constant was moved with the wrong sign. 40: the equation was not divided by the coefficient. -10: the sign of the solution was reversed.
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