Question

solve for u.
-7.4 = 5.4 + \frac{u}{2}

u = \square

Explanation:

Step1: Subtract 5.4 from both sides

To isolate the term with \( u \), we subtract 5.4 from both sides of the equation \(-7.4 = 5.4+\frac{u}{2}\).

$$ -7.4 - 5.4=5.4+\frac{u}{2}- 5.4 $$

Simplifying the left - hand side and the right - hand side, we get:

$$ -12.8=\frac{u}{2} $$

Step2: Multiply both sides by 2

To solve for \( u \), we multiply both sides of the equation \(-12.8=\frac{u}{2}\) by 2.

$$ -12.8\times2=\frac{u}{2}\times2 $$

Simplifying both sides, we have:

$$ u=-25.6 $$

Answer:

\( u = - 25.6 \)