document.write( "Question 402548: kevin's sister mary is 5 years younger than he is. the total of their ages is 33 years. how old is kevin? \n" ); document.write( "
Algebra.Com's Answer #284732 by mananth(16946)\"\" \"About 
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kevin x years
\n" ); document.write( "Mary x-5 years
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\n" ); document.write( "x+x-5 =33
\n" ); document.write( "2x-5 =33
\n" ); document.write( "add 5 to both sides
\n" ); document.write( "2x=38
\n" ); document.write( "/2
\n" ); document.write( "x=19 Kevin's age
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\n" ); document.write( "Mary's age = 19-5=14 years
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