Question

-19.7 = \frac{u}{7} - 2.2

Explanation:

Step1: Add 2.2 to both sides

To isolate the term with \( u \), we add \( 2.2 \) to both sides of the equation \( -19.7=\frac{u}{7}-2.2 \). This gives us \( -19.7 + 2.2=\frac{u}{7}-2.2 + 2.2 \). Simplifying the left and right sides, we have \( -17.5=\frac{u}{7} \).

Step2: Multiply both sides by 7

To solve for \( u \), we multiply both sides of the equation \( -17.5=\frac{u}{7} \) by \( 7 \). So, \( -17.5\times7=\frac{u}{7}\times7 \). Calculating the left side, \( -17.5\times7=-122.5 \), and the right side simplifies to \( u \).

Answer:

\( u = - 122.5 \)