Question

Solve rs + t = u for the variable s

Answer 1

`s=(u)/(r) -(t)/(r)`

Explanation:

You have to move the variables (r and t) with u to isolate s.

`rs+t=u`

`-t`
`-t`

------------------------

`rs=u-t`

÷
`r` ÷
`r`

------------------------

`s=(u)/(r) -(t)/(r)`