Question

5.3.21Solve the equation P= r+t+s for r(Simplify your answer.)​

Answer 1

Answer:

   r = P -t -s

Step-by-step explanation:

This is a one-step linear equation in r. Subtract the terms that don't contain r:

  P = r + t + s . . . . . . . . . .  given

The terms on the right that don't include r are (t+s). We want to subtract that to get r by itself.

  P -(t+s) = r +(t+s) -(t+s) . . . subtract (t+s)

  P -t -s = r . . . . . . . . . . . . . . simplify

  r = P - t - s