SOLUTION: 5x+20y=115, 8y+4x=52

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Question 460511: 5x+20y=115, 8y+4x=52
Answer by Alan3354(69443) About Me  (Show Source):
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5x+20y=115, 8y+4x=52
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5x+20y=115 --> x + 4y = 23 divided by 5
4x+ 8y=52 --> x + 2y = 13 divided by 4
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x + 4y = 23
x + 2y = 13
----------- Subtract
2y = 10
y = 5
--------
x + 2y = 13
x + 2*5 = 13
x = 3