Solve {l}{y=1}{x=9}{z=y+x}{a=z}{b=a}{c=b}{text{Solvefor}dtext{where}}{d=c}

$$\left. \begin{array} { l } { y = 1 }\\ { x = 9 }\\ { z = y + x }\\ { a = z }\\ { b = a }\\ { c = b }\\ { \text{Solve for } d \text{ where} } \\ { d = c } \end{array} \right.$$

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

$$d=10$$

Solution Steps

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

$$z=1+9$$

Add 1 and 9 to get 10.

$$z=10$$

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

$$a=10$$

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

$$b=10$$

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

$$c=10$$

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

$$d=10$$

The system is now solved.

$$y=1 x=9 z=10 a=10 b=10 c=10 d=10$$