5x-y=-15
x+y=-3
USE SUBSTITUTION METHOD
2 answers:
Answer:
5x - y = -15
x + y = -3 ===> y = -3 -x
5x - (-3 - x) = -15
5x + 3 - x = -15
5x - x = -15 -3
4x = -18
x = -18/4
x = -4.5
x + y = -3
-4.5 + y = -3
y = -3 + 4.5
y = 1.5
What I got was x= -3 and y=0
5x-y=-15
x+y=-3
y=-3-x
5x-(-3-x)=-15 (solve for X)
x=-3
y=-3-(-3)
y=0
(-3,0)
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