Question

solve for u.
-19.7 = \frac{u}{7} - 2.2

Explanation:

Step1: Add 22.2 to both sides

To isolate the term with \( u \), we add 22.2 to both sides of the equation \(-19.7=\frac{u}{7}-22.2\).

$$ -19.7 + 22.2=\frac{u}{7}-22.2 + 22.2 $$

Simplifying the left - hand side: \(-19.7 + 22.2 = 2.5\), and the right - hand side becomes \(\frac{u}{7}\). So we have \(2.5=\frac{u}{7}\).

Step2: Multiply both sides by 7

To solve for \( u \), we multiply both sides of the equation \(2.5=\frac{u}{7}\) by 7.

$$ 2.5\times7=\frac{u}{7}\times7 $$

Simplifying the left - hand side: \(2.5\times7 = 17.5\), and the right - hand side simplifies to \(u\).

Answer:

\(u = 17.5\)