Question

Resolva os sistemas:
{3×-2y=5}
×+2y=3

Answer 1

{3x+2y=5}
{x+2y=3}

3x-2y=5
+ x+2y=3
_________
4x=0+8
x=8/4
x=2

x+2y=3
2+2y=3
2y=3-2
2y=1
y=1/2