Problem

Solve for $u$.
\[
\begin{array}{l}
-12=4(u-20) \\
u=\square
\end{array}
\]

Answer

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Answer

Doing these steps, we find that the solution to the equation is \(\boxed{17}\).

Steps

Step 1 :The equation is in the form of ax = b, where a is the coefficient of the variable, x is the variable and b is the constant. In this case, a = 4, x = u - 20 and b = -12.

Step 2 :To solve for u, we need to isolate u on one side of the equation. We can do this by first dividing both sides of the equation by 4 to get rid of the coefficient of u.

Step 3 :Then, we add 20 to both sides to isolate u.

Step 4 :Doing these steps, we find that the solution to the equation is \(\boxed{17}\).

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