Solve {l}{x=3.6}{y=x/0.9}{z=y}{a=z}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { x = 3.6 }\\ { y = x / 0.9 }\\ { z = y }\\ { a = z }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

Solve for x, y, z, a, b

$$b=4$$

Solution Steps

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

$$y=\frac{3.6}{0.9}$$

Expand \frac{3.6}{0.9} by multiplying both numerator and the denominator by 10.

$$y=\frac{36}{9}$$

Divide 36 by 9 to get 4.

$$y=4$$

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

$$z=4$$

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

$$a=4$$

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

$$b=4$$

The system is now solved.

$$x=3.6 y=4 z=4 a=4 b=4$$