Question

х-3у=5 и т.д. помогмте!!!

Answer 1

x-3y=5
x=5+3y
3x+2y=4
3(5+3y)+2y=4
15+9y+2y=4
11y=4-15
11y=-11
y=-11:11
y=-1
x-3y=5
x-3*-1=5
x+3=5
x=5-3
x=2
Ответ(2:-1)