Question

How do you solve for t in `a=p+prt`?

Answer 1

`t = (a - p)/(pr)`

Explanation:

Rewrite the formula so that the term with t is positive on the left hand side.

Isolate the term, then step by step, isolate the variable you want as the subject.

`p + color(red)(prt) = a`

`color(red)(prt) = a - p " ""get rid of +p by -p"`

`prcolor(red)t = a - p" " " get rid of x pr by ÷ pr"`

`t = (a - p)/(pr)`