Solve the equation 3x + 4 = 43.
Answer and explanation
Correct answer: A. 13
- Step 1: Subtract 4: 3x = 39. Step 2. Divide by 3: x = 13. Answer: 13. Why not the others: 16: the constant was added instead of subtracted. 14: the constant term was ignored. 36: the terms were subtracted without dividing.
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