Frequent Questions about our Solver

The problem

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where does the 1 come from in this equation.

Answer provided by our tutors

You start with the equation:

A = P + Prt

Nothing will change if we switch the sides:

P + Prt = A

Then, we pull 'P' in front of brackets on the left hand side:

P(P/P + (PRt)/P) = A

P(1 + Rt) = A

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