Question

реши систему уравнений
4х-5у=6
2х+10у=20
( ; )

Answer 1

{4x-5y=6

{2x+10y=20

{x=3/2+5/4y

{2x+10y=20

2(3/2+5/4y)+10y=20

y=34/25

x=3/2+5/4*34/25

x=16/5

y=34/25