Solve each formula for the specified variable.

Question

S=P+Prt for T

Answer 1

Prt=S-P
t= (S-P)/Pr

Answer 2

S=P+Prt for T
Subtract P from both sides.
S-P = P-P+Prt
Combine terms.
S-P = Prt.
Divide both sides by Pr
(S-P)/Pr = (Prt)/Pr
etc.