xy-2x=4y
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Originally Posted by gustavolopez xy-2x=4y Solve or factorise or what ??
solve for y like it is an inverse function
Originally Posted by gustavolopez solve for y like it is an inverse function $\displaystyle y(x-4)=2x$ $\displaystyle y=\frac{2x}{x-4} $
Originally Posted by gustavolopez xy-2x=4y Re-arrange: xy - 4y = 2x Factorise: y(x - 4) = 2x. Solve for y.
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