SOLUTION: Solve for x and y. 3x + 2y = 100 4x + 3y = 135

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Question 256334: Solve for x and y.
3x + 2y = 100
4x + 3y = 135
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
3x+%2B+2y+=+100
4x+%2B+3y+=+135
Multiply eq. 1 by 4 and eq. 2 by (-3) and add them to get rid of x.
12x%2B8y%2B%28-12x-9y%29=400%2B%28-405%29%0D%0A%7B%7B%7B-y=-5
y=5
Then use either equation to solve for x.
3x%2B2y=100
3x%2B10=100
3x=90
x=30