Question

solve for u.
3(3u + 5)=78
simplify your answer as much as possible.

Explanation:

Step1: Divide both sides by 3

$\frac{3(3u + 5)}{3}=\frac{78}{3}$
$3u+5 = 26$

Step2: Subtract 5 from both sides

$3u+5 - 5=26 - 5$
$3u=21$

Step3: Divide both sides by 3

$\frac{3u}{3}=\frac{21}{3}$
$u = 7$

Answer:

$u = 7$