Question

determine o ponto P de intersecção entre as retas r: 2x+y-6=0 e s: 2x-y-10=0​

Answer 1

{2x+y-6=0 ===> y=6 -2x

{2x-y-10=0

------------------ (+)

4x -16=0

x = 4 ======> y=6 -8= -2

===> P(4, -2) ✓