Question 956729
2x-2y=-8
2x+8=2y
{{{y=x+4}}}
{{{y=(-1/2)x-(1/2)}}}
First graph the two lines:
{{{ graph( 800, 800, -10, 10, -10, 10, x+4, -0.5x-0.5) }}}
The solution is the intersection: (-3,1)
To check plug these values in the original equations.