## Thinking Mathematically (6th Edition)

Let $x$ be the original price of computer. Reduced computer price is $\780$. It means, \begin{align} & x-0.35x=780 \\ & 0.65x=780 \\ & x=\frac{780}{0.65} \\ & x=1,200 \end{align} The original price of computer is $\1,200$. So, $x-0.35x=780$ is the correct equation of a problem which is not given in the problem. Hence, the provided statement does not make sense.