3х+2у-8=0 и 2x-6y=10

Question

3х+2у-8=0 и 2x-6y=10

Answer 1

3х+2у-8=0
2х-6у=10
2х=10-6у; х=5-3у
3*(5-3у)+2у-8=0
15-9у+2у-8=0
-9у+2у=8-15
-7у=-7
у=1
х=5-3*1=2
х=2

Comments

почему нарушение?