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## Homework Statement

I need to rearrange the following equation to find x in terms of a and b, assuming that a≠-b

## Homework Equations

a(a+x)=b(b-x)

## The Attempt at a Solution

So far I have multiplied out the brackets and came up with

a[tex]^{}2[/tex]+ax=b[tex]^{}2[/tex]-bx

but I don't really know where to go from there to find x in terms of a and b.Would be really grateful if someone could help. Thanks.