1) [2*(x-2y)=x-8y [5*(x-y)=2*(x-y)+10

Question

1) [2*(x-2y)=x-8y
[5*(x-y)=2*(x-y)+10

Answer 1

2х-4у=х-8у
5х-5у=2х-2у+10

2х-х-4у+8у=0
5х-5у-2х+2у-10=0

х+4у=0
3х-3у-10=0

х=-4у

3(-4у)-3у=10
-12у-3у=10
-15у=10
у=-2/3

х=-4*(-2/3)
х=8/3=2 2/3

Comments

бро я в конце не понял