Question 121634
y=x-1 now replace y with (x-1) in the other equation.
2x-(x-1)=0
2x-x+1=0
x+1=o
x=-1 answer.
y=-1-1
y=-2 answer.
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x+y=-3
y=-x-3 now replace y with (-x-3) in the other equation & solve for x
3x+(-x-3)=3
3x-x-3=3
2x=3=3
2x=6
x=6/2
x=3 answer.
y=-3-3
y=-6 answer.
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These is two procedures for the substitution method.
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