Question 164037
y=-2x+6
y=1/2x-9

then

-2x+6=(1/2)x-9
then

-2x-(1/2)x=-9-6
(-5/2)x=-15
-5x=-30
x=6 then y=-2(6)+6=-6

Solution(6,-6)

{{{ graph( 300, 200, 0, 10, -10, 10, -2x+6, (1/2)x-9) }}}