Solve {l}{x=-4}{y=2x-3}{z=y}{a=z}{b=a}{c=b}{text{Solvefor}dtext{where}}{d=c}

$$\left. \begin{array} { l } { x = -4 }\\ { y = 2 x - 3 }\\ { z = y }\\ { a = z }\\ { b = a }\\ { c = b }\\ { \text{Solve for } d \text{ where} } \\ { d = c } \end{array} \right.$$

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

$$d=-11$$

Solution Steps

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

$$y=2\left(-4\right)-3$$

Multiply 2 and -4 to get -8.

$$y=-8-3$$

Subtract 3 from -8 to get -11.

$$y=-11$$

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

$$z=-11$$

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

$$a=-11$$

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

$$b=-11$$

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

$$c=-11$$

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

$$d=-11$$

The system is now solved.

$$x=-4 y=-11 z=-11 a=-11 b=-11 c=-11 d=-11$$