Question

solve for u. -4 = (u - 16)/(-1)

Explanation:

Step1: Multiply both sides by -1

To eliminate the denominator on the right - hand side, we multiply both sides of the equation \(-4=\frac{u - 16}{-1}\) by \(-1\).
\[
-4\times(-1)=\frac{u - 16}{-1}\times(-1)
\]

Step2: Simplify both sides

Simplify the left - hand side: \(-4\times(-1) = 4\).
Simplify the right - hand side: \(\frac{u - 16}{-1}\times(-1)=u - 16\). So we get the equation \(4=u - 16\).

Step3: Add 16 to both sides

To solve for \(u\), we add 16 to both sides of the equation \(4=u - 16\).
\[
4 + 16=u-16 + 16
\]

Step4: Simplify to find u

Simplify the left - hand side: \(4 + 16=20\).
Simplify the right - hand side: \(u-16 + 16=u\). So \(u = 20\).

Answer:

\(u = 20\)