4x + y = 3-x + 2y = -3I need to use substitution to solve this. help?
2 answers:
Answer:
Step-by-step explanation:
Answer:
(x,y) (1,-1)
Step-by-step explanation:
y=3-4x
-x+2y=-3
x+2(3-4x)=-3
x=1
y=3-4*1
y=-1
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