Solve {l}{x=1/2*0}{y=4*5+10*5}{z=y}{a=z}{b=a}{c=b}{text{Solvefor}dtext{where}}{d=c}

$$\left. \begin{array} { l } { x = \frac{1}{2} \cdot 0 }\\ { y = 4 \cdot 5 + 10 \cdot 5 }\\ { z = y }\\ { a = z }\\ { b = a }\\ { c = b }\\ { \text{Solve for } d \text{ where} } \\ { d = c } \end{array} \right.$$

Solve for x, y, z, a, b, c, d

$$d=70$$

Solution Steps

Consider the first equation. Multiply \frac{1}{2} and 0 to get 0.

$$x=0$$

Consider the second equation. Do the multiplications.

$$y=20+50$$

Add 20 and 50 to get 70.

$$y=70$$

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

$$z=70$$

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

$$a=70$$

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

$$b=70$$

Consider the equation (6). Insert the known values of variables into the equation.

$$c=70$$

Consider the equation (7). Insert the known values of variables into the equation.

$$d=70$$

The system is now solved.

$$x=0 y=70 z=70 a=70 b=70 c=70 d=70$$