Solve {l}{x=3}{y=2}{z=-7y^2}{a=z}{b=a}{text{Solvefor}ctext{where}}{c=b}

$$\left. \begin{array} { l } { x = 3 }\\ { y = 2 }\\ { z = -7 y ^ {2} }\\ { a = z }\\ { b = a }\\ { \text{Solve for } c \text{ where} } \\ { c = b } \end{array} \right.$$

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

$$c=-28$$

Solution Steps

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

$$z=-7\times 2^{2}$$

Calculate 2 to the power of 2 and get 4.

$$z=-7\times 4$$

Multiply -7 and 4 to get -28.

$$z=-28$$

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

$$a=-28$$

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

$$b=-28$$

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

$$c=-28$$

The system is now solved.

$$x=3 y=2 z=-28 a=-28 b=-28 c=-28$$