SOLUTION: Solve each system by the substitution method x + 3y = 2 -x + y = 1

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Question 317500: Solve each system by the substitution method
x + 3y = 2
-x + y = 1
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.x+%2B+3y+=+2
2.-x+%2B+y+=+1
From eq. 2,
y=x%2B1
Substitute into eq. 1,
x%2B3%28x%2B1%29=2
x%2B3x%2B3=2
4x=-1
highlight%28x=-1%2F4%29
THen from eq. 2,
y=-1%2F4%2B1
highlight%28y=3%2F4%29