Question

resolva {4x+y=8/-x+y=3

Answer 1

4x + y = 8

-x + y = 3 *(-1)

4x + y = 8

x - y = -3

5x = 5

x = 5/5

x = 1

4x + y = 8

4*(1) + y = 8

4 + y = 8

y = 8 - 4

y = 4

(1, 4)