document.write( "Question 89030: Seven years ago,Rolex was 6times as old as Rose.One year from nows he will only be twice as old.How old are Rolex and Rose? \n" ); document.write( "
Algebra.Com's Answer #64748 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
x = Rolex's age now; y = Rose's age now
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\n" ); document.write( "Just write what it says
\n" ); document.write( "\"Seven years ago, Rolex was 6 times as old as Rose.\"
\n" ); document.write( "(x-7) = 6(y-7)
\n" ); document.write( "Simplify:
\n" ); document.write( "x - 7 = 6y - 42
\n" ); document.write( "x = 6y - 42 + 7
\n" ); document.write( "x = 6y - 35;
\n" ); document.write( ":
\n" ); document.write( "\"One year from now he will only be twice as old.\"
\n" ); document.write( "(x+1) = 2(y+1)
\n" ); document.write( "Simplify:
\n" ); document.write( "x + 1 = 2y + 2
\n" ); document.write( "x = 2y + 2 - 1
\n" ); document.write( "x = 2y + 1
\n" ); document.write( ":
\n" ); document.write( "Take the 1st equation (x = 6y - 35) and substitute (2y+1) for x
\n" ); document.write( "2y + 1 = 6y - 35
\n" ); document.write( "1 + 35 = 6y - 2y
\n" ); document.write( "4y = 36
\n" ); document.write( "y = 36/4
\n" ); document.write( "y = 9 yrs is Rose's age now
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\n" ); document.write( "Find x, (Rolex's age)
\n" ); document.write( "x = 2y + 1
\n" ); document.write( "x = 18 + 1
\n" ); document.write( "x = 19 yrs now
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\n" ); document.write( ":
\n" ); document.write( "Check solution using,\"Seven years ago, Rolex was 6 times as old as Rose.\"
\n" ); document.write( "(19-7) = 6(9-7)
\n" ); document.write( " 12 = 6(2); confirms our solution
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\n" ); document.write( "Did this help you understand these kind of problems? This same method will
\n" ); document.write( "work for most of these. \r
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