Posted by KaDijah on Sunday, September 30, 2012 at 12:04pm.
If 5x3y4=4x2y12 find x and y. I really just want to know HOW you would find it.

Algebra,Geometry  David Q/R, Sunday, September 30, 2012 at 12:50pm
You won't be able to determine x and y uniquely from just a single equation: you would need two equations to do that. The best you can do with just one equation is to work out x in terms of y, or y in terms of x. The way you do that is to get all the x's on one side, and all the y's on the other. In this example, you'd do something like this:
5x  3y  4 = 4x  2y  12, so add 3y to both sides to get:
5x  4 = 4x + y  12. Now subtract 4x from both sides to get:
x  4 = y  12. So x = y  8, or y = x + 8.

Algebra,Geometry  D, Monday, October 8, 2012 at 12:42am
You could actually set "X"=0 to find Y, and then plug in a "0" for Y to get X.
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