Solve {l}{p=-4}{r=3}{q=p-r/3}{s=q}{t=s}{text{Solvefor}utext{where}}{u=t}

$$\left. \begin{array} { l } { p = -4 }\\ { r = 3 }\\ { q = p - r / 3 }\\ { s = q }\\ { t = s }\\ { \text{Solve for } u \text{ where} } \\ { u = t } \end{array} \right.$$

Solve for p, r, q, s, t, u

$$u=-5$$

Solution Steps

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

$$q=-4-\frac{3}{3}$$

Divide 3 by 3 to get 1.

$$q=-4-1$$

Subtract 1 from -4 to get -5.

$$q=-5$$

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

$$s=-5$$

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

$$t=-5$$

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

$$u=-5$$

The system is now solved.

$$p=-4 r=3 q=-5 s=-5 t=-5 u=-5$$