Question

solve for u. -91 = 3u + 6u - 19 simplify your answer as much as possible. u =

Explanation:

Step1: Combine like - terms

Combine $3u$ and $6u$ on the right - hand side of the equation.
$-91=(3 + 6)u-19$
$-91 = 9u-19$

Step2: Add 19 to both sides

To isolate the term with $u$, add 19 to both sides of the equation.
$-91+19=9u-19 + 19$
$-72 = 9u$

Step3: Solve for $u$

Divide both sides of the equation by 9.
$\frac{-72}{9}=u$
$u=-8$

Answer:

$u = - 8$