Question

решите систему уравнений
{2x-7y=14
{3x+2y=-14

Answer 1

2х-7y=14
3x+2y=-14

6x-21y=42
6x+4y=28

25y=-14
y=0,56
2x-7*0.56=14
2x-3.92=14
2x=17.92
x=8.96

(2*8.96)-(7*0.56)=14
17.92-3.92=14