-7x+y=-19-2x+3y=-19
-7-2=-9y+3y=4y-9x+4y=-19
y=7x-19-2x+3(7x-19)=-19-2x+21x-57=-1919x-57=-1919x=38x=2-7(2) + y = -19-14 + y = -19y=-5