document.write( "Question 899154: Joan is five years older than Rob, ten years ago the sum of their age was 25, how old are they now..\r
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document.write( "scuba_wibbs@live.com \n" );
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Algebra.Com's Answer #545239 by harpazo(655)![]() ![]() You can put this solution on YOUR website! Joan's age now = x + 5\r \n" ); document.write( "\n" ); document.write( "Rob's age now = x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(x + 5) - 10 + x - 10 = 25\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x + 5 - 10 + x - 10 = 25\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x + 5 - 20 = 25\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x - 15 = 25\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x = 15 + 25\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x = 40\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 40/2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 20\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Rob is 20 years old.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Joan is 25 years old. \n" ); document.write( " |