Question 318935
1.{{{4x-3y = -10}}} 
2.{{{5x-4y=-13}}}
From eq. 1,
{{{4x=-10+3y}}}
{{{x=(-10+3y)/4}}}
{{{5x=(5/4)(-10+3y)}}}
Substitute into eq. 2,
{{{(5/4)(-10+3y)-4y=-13}}}
Multiply both sides by (4),
{{{5(-10+3y)-16y=-52}}}
{{{-50+15y-16y=-52}}}
{{{-y=-2}}}
{{{highlight(y=2)}}}
Then from above,
{{{x=(-10+3y)/4}}}
{{{x=(-10+6)/4}}}
{{{x=-4/4}}}
{{{highlight(x=-1)}}}