document.write( "Question 999503: his grandpa's 84 and his mom is 46 how many years ago was grandpa twice her age. \n" ); document.write( "
Algebra.Com's Answer #617173 by Theo(13342)\"\" \"About 
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let x = the number of years ago.\r
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\n" ); document.write( "\n" ); document.write( "you get 84 - x = 2 * (46 - x)\r
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\n" ); document.write( "\n" ); document.write( "that results in 84 - x = 92 - 2x\r
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\n" ); document.write( "\n" ); document.write( "add 2x to both sides of this equation and subtract 84 from both sides of this equation to get:\r
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\n" ); document.write( "\n" ); document.write( "x = 8\r
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\n" ); document.write( "\n" ); document.write( "he's 84 now.
\n" ); document.write( "8 years ago he was 76\r
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\n" ); document.write( "\n" ); document.write( "she's 46 now.
\n" ); document.write( "8 years ago she was 38\r
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\n" ); document.write( "\n" ); document.write( "2 * 38 = 76\r
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\n" ); document.write( "\n" ); document.write( "looks like we did good.\r
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\n" ); document.write( "\n" ); document.write( "answer is the age of grandpa was 2 times the age of mom 8 years ago.\r
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