Question 93314
x+2y=-1
x=-2y-1 now substituting (-2y-1) for x in the other equation we get:
3(-2y-1)-4y=27
-6y-3-4y=27
-10y=27+3
-10y=30
y=30/-10
y=-3 answer.
x=-2*-3-1
x=6-1
x=5 answer.
proof
3*5-4*-3=27
15+12=27
27=27