Solve for x in the algebraic equation: 4(x - 3) + 2 = 2x + 8.
Answer and explanation
Correct answer: D. 9
- Step 1: Expand: 4x - 12 + 2 = 2x + 8 -> 4x - 10 = 2x + 8. Step 2. Subtract 2x: 2x - 10 = 8 -> 2x = 18 -> x = 9. Answer: 9. Why not the others: 7 gives 4(4)+2 = 18 != 22; 8 gives 4(5)+2 = 22 != 24; 11 gives 34 != 30.
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