allerySolve for x: 8x + 4 = 3(x − 1) + 7
Ax = 0
Bx = 1
Cx = −1
Dx = 2
Answer & Solution
Correct answer: A. x = 0
Expand the right side: 8x + 4 = 3x − 3 + 7 = 3x + 4. Subtract 3x and 4 from both sides: 5x = 0
so x = 0. A quick check: LHS = 4, RHS = 3(−1)+7 = 4. ✓
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