Question

resolva os sistemas [y=x+2[y+x=14-x

Answer 1

-x + y = 2 (*-1)
2x + y = 14
____________
x - y = -2
2x + y = 14
____________
3x = 12
x = 12/3
x = 4

2x + y = 14
2(4) + y = 14
8 + y = 14
y = 14 - 8
y = 6

BONS ESTUDOS!