Solve for the indicated variable p

Question

I don't know what you do to solve it.

A=P+Prt

Answer 1

To solve for P in
A=P+Prt
you would arrange all terms containing P on the left, and everything else to the right, namely:
-P-Prt=A
Now factor using the distributive property:
-(1+rt)P=A
Divide both sides by the coefficient of P:
P=-A/(1+rt)