document.write( "Question 1046041: Five years ago, a grandmother was 4 times as old as her grandson was. Three years from now, she will only be 3 times as old as her grandson will be then. How old is the grandson now? \n" ); document.write( "
Algebra.Com's Answer #661610 by ankor@dixie-net.com(22740)\"\" \"About 
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let g = grandmother's age now
\n" ); document.write( "lets = grandson's age
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\n" ); document.write( "Write an equation for each statement,simplify as much as possible
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\n" ); document.write( "Five years ago, a grandmother was 4 times as old as her grandson was.
\n" ); document.write( "g-5 = 4(s-5)
\n" ); document.write( "g- 5 = 4s - 20
\n" ); document.write( "g = 4s - 20 + 5
\n" ); document.write( "g = 4s - 15
\n" ); document.write( " Three years from now, she will only be 3 times as old as her grandson will be then.
\n" ); document.write( "g + 3 = 3(s+3)
\n" ); document.write( "g + 3 = 3s + 9
\n" ); document.write( " g = 3s + 9 - 3
\n" ); document.write( " g = 3s + 6
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\n" ); document.write( " How old is the grandson now?
\n" ); document.write( "g = g, therefore
\n" ); document.write( "4s - 15 = 3s + 6
\n" ); document.write( "4s - 3s = 15 + 6
\n" ); document.write( "s = 21 is the grandson's present age
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\n" ); document.write( "You can check this for yourself, find grandma's age and check it in one of the two statement. \n" ); document.write( "
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