SOLUTION: solve using any appropriate method: 5x-9y=7, 7y-3x= -5

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Question 208011This question is from textbook elementary and intermediate algebra
: solve using any appropriate method:
5x-9y=7, 7y-3x= -5 This question is from textbook elementary and intermediate algebra

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
5x-9y=7
7y-3x= -5
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Multiply 1st eqn by 3, 2nd by 5, put in order
15x - 27y = 21
-15x+ 35y = -25
--------------- Add
8y = -4
y = -1/2
--------
5x - 9*(-1/2) = 7
5x + 9/2 = 7
5x = 5/2
x = 1/2