document.write( "Question 536667: Serena's father is twenty-six years older than serena. In ten years, the sum of the ages will be eighty. What are their present ages? Please Help Thank you. \n" ); document.write( "
Algebra.Com's Answer #352515 by algebrahouse.com(1659)\"\" \"About 
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\"Serena's father is twenty-six years older than serena. In ten years, the sum of the ages will be eighty. What are their present ages?\"\r
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\n" ); document.write( "\n" ); document.write( "x = Serena's age now
\n" ); document.write( "x + 26 = father's age now\r
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\n" ); document.write( "\n" ); document.write( "x + 10 = Serena's age in 10 years
\n" ); document.write( "x + 36 = father's age in 10 years {added 10 on to each one}\r
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\n" ); document.write( "\n" ); document.write( "x + 10 + x + 36 = 80 {in ten years the sum of the ages will be 80}
\n" ); document.write( "2x + 46 = 80 {combined like terms}
\n" ); document.write( "2x = 34 {subtracted 46 from both sides}
\n" ); document.write( "x = 17 {divided both sides by 2}
\n" ); document.write( "x + 26 = 43 {substituted 17, in for x, into x + 26}\r
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\n" ); document.write( "\n" ); document.write( "Serena is 17
\n" ); document.write( "her father is 43
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