Question

Please help me with this

Answer 1

-9 3/4

Explanation:

The last step is to simplify the fraction into a mixed one.

Answer 2

The answer is -3/4

Step by step:
-18=5x-3(3x+7)
-18=5x-9x-21
-18=-4x-21
4x=-21+18
4x=-3
x=-3/4