Question

36=u/5+13 Equations

Answer 1

$\frac{u}{5}+13=36$ ⇒ $\frac{u}{5}=36-13 = 23$

$u=23*5$

$\boxed {u=115}$

Answer 2

$36= \frac{u}{5}+13 \\ -13.... -13 \\ ------ \\ 23= \frac{u}{5} \\ => u=23*5=115$