Question

{
−x + 2y = 8
2x − y = 2

Answer 1

Resposta:

6272672818199@991992

Answer 2

{-x+2y=8

{2x-y=2

2x-2=y

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

-x+4x-4=8 -4+2y=8

-x+4x=8+4 2y=8+4

3x=12 2y=12

x=12÷3 y=12÷2

x=4 y=6