document.write( "Question 1138804: Joe is 35 and his son is 5. In how many years will Joe be exactly three times as old as his son? \n" ); document.write( "

Algebra.Com's Answer #756582 by MathLover1(20850) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "Joe is $\"35\"$ and his son is $\"5\"$ . \r
\n" ); document.write( "\n" ); document.write( "In $\"x\"$ years will Joe be exactly three times as old as his son:\r
\n" ); document.write( "\n" ); document.write( " $\"35%2Bx=3%285%2Bx%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"35%2Bx=15%2B3x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"35-15=3x-x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"20=2x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=10\"$ \r
\n" ); document.write( "\n" ); document.write( "answer: In $\"10\"$ years will Joe be exactly three times as old as his son.\r
\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "now, Joe is $\"35\"$ and his son is $\"5\"$ \r
\n" ); document.write( "\n" ); document.write( "in $\"10\"$ years, Joe is $\"45\"$ and his son is $\"15\"$ \r
\n" ); document.write( "\n" ); document.write( "and $\"45=3%2A15\"$ which confirms our solution\r
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