Question

Slove equation with variables on both sidesu = 10 + 3u

Answer 1

`\begin{gathered} u=10+3u \\ \text{Subtract u from both sides:} \\ u-u=10+3u-u \\ 0=10+2u \\ \text{Subract 10 from both sides:} \\ -10=10+2u-10 \\ -10=2u \\ \text{Divide both sides by 2:} \\ -(10)/(2)=(2u)/(2) \\ -5=u \\ u=-5 \end{gathered}`