Solve for x: |2x + 1| = 7.
✓ Correct Answer: Option C
An absolute value equation |A| = B means A = B or A = -B. So, 2x + 1 = 7 or 2x + 1 = -7. Solving these gives 2x = 6 (x=3) and 2x = -8 (x=-4). Both solutions are valid.
An absolute value equation |A| = B means A = B or A = -B. So, 2x + 1 = 7 or 2x + 1 = -7. Solving these gives 2x = 6 (x=3) and 2x = -8 (x=-4). Both solutions are valid.