Question

РЕШИТЕ ПЖ АЛГЕБРУ!!!​

Answer 1

2x-y=5

5x+2y=8

y=2x-5

5x+2y=8

y=2x-5

5x+2(2x-5)=8

y=2x+5

5x+4x-10=8

y=2x-5

9x=18

y=2x-5

x=2

y=2×2-5

x=2

y=-1

x=2

(2;-1)