Solve {l}{x=3}{y=3+2^x}{z=y}{a=z}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { x = 3 }\\ { y = 3 + 2 ^ {x} }\\ { z = y }\\ { a = z }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

Solve for x, y, z, a, b

$$b=11$$

Solution Steps

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

$$y=3+2^{3}$$

Calculate 2 to the power of 3 and get 8.

$$y=3+8$$

Add 3 and 8 to get 11.

$$y=11$$

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

$$z=11$$

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

$$a=11$$

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

$$b=11$$

The system is now solved.

$$x=3 y=11 z=11 a=11 b=11$$