Solve {l}{x=-5}{y=7x}{z=y}{a=z}{b=a}{c=b}{text{Solvefor}dtext{where}}{d=c}

$$\left. \begin{array} { l } { x = -5 }\\ { y = 7 x }\\ { z = y }\\ { a = z }\\ { b = a }\\ { c = b }\\ { \text{Solve for } d \text{ where} } \\ { d = c } \end{array} \right.$$

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

$$d=-35$$

Solution Steps

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

$$y=7\left(-5\right)$$

Multiply 7 and -5 to get -35.

$$y=-35$$

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

$$z=-35$$

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

$$a=-35$$

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

$$b=-35$$

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

$$c=-35$$

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

$$d=-35$$

The system is now solved.

$$x=-5 y=-35 z=-35 a=-35 b=-35 c=-35 d=-35$$