{9x+3y=-6 {-1.5x+y=-5
{9x+3y=-6 {y=-5+1,5x 9x+3y=-6
9x+3(1,5x-5)=-6
9x+4,5x-15=-6
13,5x=15-6
x=11/13,5
y=-5+1,5x==>>>y=-5+1,5*11/13,5=16,5/13,5-5=16,5-67,5/13,5=-51/13,5
{9x+3y=-6
{-1.5x+y=-5
{9x+3y=-6
{y=-5+1,5x 9x+3y=-6
9x+3(1,5x-5)=-6
9x+4,5x-15=-6
13,5x=15-6
x=11/13,5
y=-5+1,5x==>>>y=-5+1,5*11/13,5=16,5/13,5-5=16,5-67,5/13,5=-51/13,5