Question

x - y = 3
2x - 2y = 2

Resolver o sistema algebricamente

Answer 1

x = 3+y

2(3+y)-2y=2
6+2y-2y=2
+2y-2y = 2-6
0y= -4
y = 0

x = 3+0
x = 3

(3,0)