document.write( "Question 222715: We are able to solve this problem using guess & check, but are unable to write it as an equation. The ages of John & Mary total 27 years. Mary's age plus twice John's age is 40. How old is each person? \n" ); document.write( "
Algebra.Com's Answer #166701 by Alan3354(69443)\"\" \"About 
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The ages of John & Mary total 27 years. Mary's age plus twice John's age is 40. How old is each person?
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\n" ); document.write( "M+ J = 27
\n" ); document.write( "M+2J = 40
\n" ); document.write( "------------- subtract
\n" ); document.write( "-J = -13
\n" ); document.write( "J = 13
\n" ); document.write( "M = 27
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