document.write( "Question 121550: im not very good at algebra. Joe's dad s 2 times joe's age. 7 years ago, he was 3 times older than joe. find both's ages. \n" ); document.write( "

Algebra.Com's Answer #89201 by awang1996(50) $\"\"$ $\"About$

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Joe's dad's 2 times joe's age. 7 years ago, he was 3 times older than joe. find both's ages.
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\n" ); document.write( "2j=d
\n" ); document.write( "d-7=3(j-7)
\n" ); document.write( "2j-7=3j-21
\n" ); document.write( "subtract 2j from both sides.
\n" ); document.write( "-7=j-21
\n" ); document.write( "add 21 to both sides.
\n" ); document.write( "j=14
\n" ); document.write( "d=28 \n" ); document.write( "

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