SOLUTION: 3xy/4-xy=-2 1/3(x-5)=xy

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Question 998303: 3xy/4-xy=-2
1/3(x-5)=xy
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
3xy%2F4-xy=-2
1%2F3%28x-5%29=xy
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Sub for xy in the 1st equation.
3%281%2F3%28x-5%29%29%2F4+-+1%2F3%28x-5%29+=+-2
Multiply by 4
3%281%2F3%28x-5%29%29+-+4%2F3%28x-5%29+=+-8
1%2F%28x-5%29+-+4%2F3%28x-5%29+=+-8
Multiply by x-5
1+-+4%2F3+=+-8%28x-5%29+=+-8x%2B40
-1%2F3+=+-8x%2B40
-8x = -121/3
x = 121/24
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1%2F3%28x-5%29=xy
1%2F%28x-5%29=3xy
1%2F%28121%2F24-5%29=121y%2F8
1%2F%281%2F24%29=121y%2F8
24=121y%2F8
y = 192/121