SOLUTION: Find the value of x and y if: 5x -3y = 35 and y = x-y

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Question 178658: Find the value of x and y if: 5x -3y = 35 and y = x-y
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.5x-3y=35
2.y=x-y
Re-arrange eq. 2,
2.y=x-y
2y=x
x=2y
Substitute for x with this expression and solve for y in eq. 1,
1.5x-3y=35
5%282y%29-3y=35
10y-3y=35
7y=35
highlight%28+y=5%29
Then from eq. 2,
x=2y
x=2%285%29
highlight%28+x=10%29