(2х+3)+(3х+4)+(5х+5)=12-7х

Question

(2х+3)+(3х+4)+(5х+5)=12-7х

Answer 1

(2х + 3) + (3х + 4) + (5х + 5) = 12 - 7х 
2х + 3 + 3х + 4 + 5х + 5 = 12 - 7х 
10 х + 12 = 12 - 7х
17х = 0
х = 0 
Ответ : 0