Hey guys. ((x+1)/(x-1))=2a Solve for x please I can't figure this one out.
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Originally Posted by DHS1 Hey guys. ((x+1)/(x-1))=2a Solve for x please I can't figure this one out. $\displaystyle \frac{x+1}{x-1}=\frac{2a}{1}$ now, cross-multiply and solve. Show your work.
Originally Posted by DHS1 Hey guys. ((x+1)/(x-1))=2a Solve for x please I can't figure this one out. Here we go... $\displaystyle \frac{x+1}{x-1}=2a$ $\displaystyle x+1=2a(x-1)$ $\displaystyle x+1=2ax-2a$ $\displaystyle x-2ax=-2a-1$ $\displaystyle x(1-2a)=-2a-1$ $\displaystyle x=\frac{-2a-1}{1-2a}$
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