Question

Determine a solução do sistema 5x-3y=11
-2x+y=-5

Answer 1

y=-5+2x

5x-3(-5+2x)=11
5x-15-6x=11
5x-6x=11+15
-x=26
x=-26

y=-5+2×(-26)
y=-5-52
y=-57

$x = - 26 \\ y = - 57$