Question

{3x+5y=-6      x-2y=-2     qual e o resultado?

Answer 1

3X+5Y=-6

X-2Y=-2
X=-2+2Y

3(-2+2Y)+5Y=6
-6+6Y+5Y=6
11Y=6+6
11Y=12
Y=12/11

X=-2+2(12/11)
X=-2+24/11
X= (-22+24)/11
X=2/11