document.write( "Question 675665: Jane is x years old today. Her brother Kenny is 4 years older. After seven years, their combined age will be 24 years. \r
\n" ); document.write( "\n" ); document.write( "Write a linear equation for their total combined age after 7 years. \r
\n" ); document.write( "\n" ); document.write( "Find Janes age today.
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Algebra.Com's Answer #419997 by candydreams99(2)\"\" \"About 
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Well, if Jane is x years old that means Kenny is x+4.
\n" ); document.write( "Seven years later, Jane would be x+7 and Kenny would be x+11.
\n" ); document.write( "It says their combined age would be 24, so the equation would be:
\n" ); document.write( "x+7 + x+11 = 24
\n" ); document.write( "2x + 18=24
\n" ); document.write( "(subtract 18 from both sides)
\n" ); document.write( "- 18 + 2x + 18=24 +-18
\n" ); document.write( "2x = 6
\n" ); document.write( "(divide each side by 1/2 to get x by itself)
\n" ); document.write( "x = 3
\n" ); document.write( "x+4 = 7\r
\n" ); document.write( "\n" ); document.write( "So, Jane is 3 and Kenny is 7.\r
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