Solve {l}{f{(x)}=2x}{x=2}{g=f{(x)}}{text{Solvefor}htext{where}}{h=g}

$$\left. \begin{array} { l } { f {(x)} = 2 x }\\ { x = 2 }\\ { g = f {(x)} }\\ { \text{Solve for } h \text{ where} } \\ { h = g } \end{array} \right.$$

Solve for f, x, g, h

$$h=4$$

Solution Steps

Consider the first equation. Insert the known values of variables into the equation.

$$f\times 2=2\times 2$$

Cancel out 2 on both sides.

$$f=2$$

Consider the third equation. Insert the known values of variables into the equation.

$$g=2\times 2$$

Multiply 2 and 2 to get 4.

$$g=4$$

Consider the fourth equation. Insert the known values of variables into the equation.

$$h=4$$

The system is now solved.

$$f=2 x=2 g=4 h=4$$