Question

resolva o sistema

a){2x+y=5
{3x-y=5

Answer 1

Olá,

2x+y = 5
3x-y = 5
------------
2x+3x+y-y = 5+5
5x = 10
x = 10/5
x = 2

2x+y = 5
y = 5-2x
y = 5-2(2)
y = 5-4
y = 1

Resposta:

(x,y) = (2,1)