Question

x+y=6 e 2x+y=4
ajuda nois​

Answer 1

Resposta:

x + y = 6 2x + y = 4

y = 6 - X

2x + y = 4

2x + 6 - X= 4

2x - x = 4 - 6

X = -2

y = 6 - X

y = 6 - (-2)

y = 6 + 2

y = 8

S={-2,8}