Solve {l}{x+x=10}{y=x}{z=y}{a=z}{b=a}{c=b}{text{Solvefor}dtext{where}}{d=c}

$$\left. \begin{array} { l } { x + x = 10 }\\ { y = x }\\ { z = y }\\ { a = z }\\ { b = a }\\ { c = b }\\ { \text{Solve for } d \text{ where} } \\ { d = c } \end{array} \right.$$

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

$$d=5$$

Solution Steps

Consider the first equation. Combine x and x to get 2x.

$$2x=10$$

Divide both sides by 2.

$$x=\frac{10}{2}$$

Divide 10 by 2 to get 5.

$$x=5$$

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

$$y=5$$

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

$$z=5$$

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

$$a=5$$

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

$$b=5$$

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

$$c=5$$

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

$$d=5$$

The system is now solved.

$$x=5 y=5 z=5 a=5 b=5 c=5 d=5$$