Question

$$f(x)=2x-5,FINDf(-2)$$

Answer

f=(2*x-5)/x,FINDf(-2)/x

Solution


Break down the problem into these 2 equations.
\[fx=2x-5\]
\[fx=FINDf(-2)\]
Solve the 1st equation: \(fx=2x-5\).
\[f=\frac{2x-5}{x}\]
Solve the 2nd equation: \(fx=FINDf(-2)\).
\[f=\frac{FINDf(-2)}{x}\]
Collect all solutions.
\[f=\frac{2x-5}{x},\frac{FINDf(-2)}{x}\]