Question

решите уравнение 3(х-7)-(9-2х)=2(12-х)-(х-10)

Answer 1

3x-21-9+2x=24-2x-x+10
5x-30=34-3x
8x=64
x=8

Answer 2

3(х-7)-(9-2х)=2(12-х)-(х-10)

3x - 21 -9+2x= 24-2x - x+10
3x+2x+2x+x=24+10+21+9
8x = 64 | : 8
x=8

Ответ: x=8