Question

Help please i suck at this

Answer 1

Mistake: -3-5=-2, -3-5=-8

Explanation:

-3-(7x+5)+9x=-8+3x+10

-3-7x-5+9x=4x+2

-8+2x=4x+2

-8-2=4x-2x

-10=2x

-10/2=x

-5=x