SOLUTION: solve by cross multiplication method.. (a-b)x + (a+b)y = 2a^2 -2b^2 ax - by = a^2 + b^2

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Question 750268: solve by cross multiplication method..
(a-b)x + (a+b)y = 2a^2 -2b^2
ax - by = a^2 + b^2
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Equation with two unknown variables, maybe four unknown variables. No rational expression is present, so no cross-multiplication is practical. The equation would have infinite solutions. The best you could do is to put this seemingly linear, not quadratic, equation into a standard form.

... in which it IS already.

%28a-b%29x+%2B+%28a%2Bb%29y+=+2a%5E2+-2b%5E2

You could also put into slope intercept form:
y%28a%2Bb%29=-%28a-b%29x%2B2a%5E2-2b%5E2
highlight%28y=%28%28b-a%29%2F%28a%2Bb%29%29x%2B%282a%5E2-2b%5E2%29%2F%28a%2Bb%29%29