document.write( "Question 514190: Billy has 3 times as much money as Reagan. Madison has 4 times as much money as Reagan. If Madison has $21 more than Reagan, how much money do they have altogether? \r
\n" ); document.write( "\n" ); document.write( "I have tried x+4x=x+21 \n" ); document.write( "
Algebra.Com's Answer #343439 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Write an equation for each statement
\n" ); document.write( ":
\n" ); document.write( "\"Billy has 3 times as much money as Reagan.\"
\n" ); document.write( "b = 3r
\n" ); document.write( ":
\n" ); document.write( "\" Madison has 4 times as much money as Reagan.\"
\n" ); document.write( "m = 4r
\n" ); document.write( ":
\n" ); document.write( " \"Madison has $21 more than Reagan,\"
\n" ); document.write( "m = r + 21
\n" ); document.write( "Note that m = 4r and (r+21) so we can solve for r (m=m)
\n" ); document.write( "4r = r+21
\n" ); document.write( "4r - r = 21
\n" ); document.write( "3r = 21
\n" ); document.write( "r = 21/3
\n" ); document.write( "r = $7 is Reagans amt
\n" ); document.write( "then
\n" ); document.write( "b = 3(7)
\n" ); document.write( "b = $21
\n" ); document.write( "and
\n" ); document.write( "m = 4(7)
\n" ); document.write( "m =$28
\n" ); document.write( ":
\n" ); document.write( " how much money do they have altogether?
\n" ); document.write( "7 + 21 + 28 = $56\r
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