Question

2(2x+3)+5(x+1)=8-3(x+1)

Answer 1

Utilizando a regra da distributiva:
2(2x+3)+5(x+1)=8-3(x+1)
4x+6+5x+5=8-3x-3
4x+5x+6+5=-3x+8-3
4x+5x-3x=8-3-5-6
6x=-6
x=-6/6
x=-1

Answer 2

2(2x+3)+5(x+1)=8-3(x+1) 

4x+6+5x+5=8-3x+3

4x+5x+3x=8+3-6-5

12x=0

x=12