Question

Resolva {x-2y=-16
{8x+3y=62

Answer 1

x-2y=-16    (3)
8x+3y=62  (2)

3x-6y=-48
16x+6y=124
19x=76
x=76/19
x=4 

4-2y=-16
-2y=-16-4
-2y=-20 (-1) 
2y=20
Y=20/2
Y=10 

S[x=4 , y=10]