Question

ANSWER ASAP WORTH A LOT OF POINTS
Circle the mistake, then finish the problem correctly

Answer 1

Answer: Mistake is when they added 7x to 6x and -5x and got 18x.
The real answer is 8x - 11. Steps below.

Explanation:

7x + 3(2x - 4) -5x + 1
7x + 6x - 12 - 5x + 1
8x - 12 + 1
8x - 11. Can't simplify any further so this is the answer