Question

a) (x-2y=6
2x+y=-3,

6) (3x+y=3
4y+3x=6.​

Answer 1

Ответ:

x=6+2y

2(6+2y)+y=-3

12+5y=-3

5y=9

y=9/5

y=1,8

x=6+2*1.8

x=6+3.6

x=9.6

y=1.8

x=9.6