Question

A=P+PRT solve for the indicated variable R

Answer 1

R=A/PT-P/T

Explanation:

A=P+PRT

-P -P

_______

A-P=PRT

÷PT ÷PT

_______

A/PT-P/T=R

Answer 2

(A-P)/PT = R

Explanation:

A=P+PRT

Subtract P from each side

A-P=P-P+PRT

A- P = PRT

Divide each side by PT

(A-P)/PT = PRT/PT

(A-P)/PT = R