document.write( "Question 240059: I am having trouble with two equations - solving for variables...
\n" ); document.write( " \r
\n" ); document.write( "\n" ); document.write( " A = P+PRT --------- solve for P\r
\n" ); document.write( "\n" ); document.write( "..this one I am not sure where to begin, since there are two P's in the equation. The only thing I can think of is to subtract the RT from both sides (but am not sure if this is correct).\r
\n" ); document.write( "\n" ); document.write( " A = 1/2 h (B+b) ------------- solve for b\r
\n" ); document.write( "\n" ); document.write( "(having problems trying to type it- but the first part is 1/2 h - 'h' is next to the 1/2)
\n" ); document.write( "..do I multiply everything by 1/2?- not sure how to begin/complete the problem.
\n" ); document.write( "

Algebra.Com's Answer #176009 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A = P+PRT --------- solve for P
\n" ); document.write( "Factor the right side:
\n" ); document.write( "A = P(1 + RT)
\n" ); document.write( "Solve for \"P\":
\n" ); document.write( "P = A/(1 + RT)
\n" ); document.write( "--------------------------\r
\n" ); document.write( "\n" ); document.write( "A = (1/2) h (B+b) ------------- solve for b
\n" ); document.write( "---
\n" ); document.write( "Multiply both sides by 2 to get:
\n" ); document.write( "2A = h(B + b)
\n" ); document.write( "Divide both sides by \"h\":
\n" ); document.write( "B + b = (2A)/h
\n" ); document.write( "Subtract \"b\" from both sides.
\n" ); document.write( "b = [(2A)/h] - B
\n" ); document.write( "===============================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" ); document.write( "
\n" );