SOLUTION: Solve using the substitution method: x-y=5 x+2y=7

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Question 376293: Solve using the substitution method:
x-y=5
x+2y=7
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
x-y=5
x=5+y

x+2y=7
5+y+2y=7
5+3y=7
3y=2
y=2/3

x=5+y=5+2/3=17/3

Answers: x=17/3, y=2/3