Solve {l}{x*25=0}{y=15*20}{z=y}{a=z}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { x \cdot 25 = 0 }\\ { y = 15 \cdot 20 }\\ { z = y }\\ { a = z }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

Solve for x, y, z, a, b

$$b=300$$

Solution Steps

Consider the first equation. Divide both sides by 25. Zero divided by any non-zero number gives zero.

$$x=0$$

Consider the second equation. Multiply 15 and 20 to get 300.

$$y=300$$

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

$$z=300$$

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

$$a=300$$

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

$$b=300$$

The system is now solved.

$$x=0 y=300 z=300 a=300 b=300$$