document.write( "Question 874966: jack is 23 years younger than his father.his father is x years old and the sum of their ages is 64.calculate jack's age \n" ); document.write( "
Algebra.Com's Answer #527968 by lwsshak3(11628)\"\" \"About 
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jack is 23 years younger than his father.his father is x years old and the sum of their ages is 64.calculate jack's age
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\n" ); document.write( "let x=father's age
\n" ); document.write( "x-23=jack's age
\n" ); document.write( "x+(x-23)=64
\n" ); document.write( "2x-23=64
\n" ); document.write( "2x=87
\n" ); document.write( "x=43.5
\n" ); document.write( "x-23=20.5
\n" ); document.write( "jack's age=20.5
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