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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Algebra.Com's Answer #545239 by harpazo(655)\"\" \"About 
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Joan's age now = x + 5\r
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\n" ); document.write( "\n" ); document.write( "(x + 5) - 10 + x - 10 = 25\r
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\n" ); document.write( "\n" ); document.write( "x + 5 - 10 + x - 10 = 25\r
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\n" ); document.write( "\n" ); document.write( "2x + 5 - 20 = 25\r
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\n" ); document.write( "\n" ); document.write( "2x - 15 = 25\r
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\n" ); document.write( "\n" ); document.write( "2x = 15 + 25\r
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\n" ); document.write( "\n" ); document.write( "2x = 40\r
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\n" ); document.write( "\n" ); document.write( "x = 40/2\r
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\n" ); document.write( "\n" ); document.write( "x = 20\r
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\n" ); document.write( "\n" ); document.write( "Rob is 20 years old.\r
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\n" ); document.write( "\n" ); document.write( "Joan is 25 years old.
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