SOLUTION: Solve for unknown: 3x-4y=10 4x-3y=5 (I used the method of interchangeable coefficients but not getting the answer)

SOLUTION: Solve for unknown: 3x-4y=10 4x-3y=5 (I used the method of interchangeable coefficients but not getting the answer)

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Question 404857: Solve for unknown:
3x-4y=10
4x-3y=5
(I used the method of interchangeable coefficients but not getting the answer)
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

I think I would multiply the top equation by

(now add)

Substitute this in the top equation:

I'll check the 2nd equation:

OK
You can check 1st

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