F=c/32, solve for c
To solve a linear equation for a variable, undo what has been done to it.
A = P(1+r*t)
A/P = 1+ r*t (divide by P)
(A/P) - 1 = r*t (subtract 1)
(A/P - 1)/r = t (divide by r)
A = P(1+r*t)
A/P = 1+ r*t (divide by P)
(A/P) - 1 = r*t (subtract 1)
(A/P - 1)/r = t (divide by r)