Решите пжл 16у-4=12у+8 5(7-2х)+13=9х+48 4(3-7у)+10=-10у-86

Question

Решите пжл
16у-4=12у+8
5(7-2х)+13=9х+48
4(3-7у)+10=-10у-86

Answer 1

16у-4=12у+8
16y-12y=8+4
4y=12
y=3

5(7-2х)+13=9х+48
35-10x+13=9x+48
-10x-9x=48-35-13
-19x=0
x=0

4(3-7у)+10=-10у-86
12-28y+10=-10y-86
-28y+10y=-86-12-10
-18y=-108
y=6