document.write( "Question 1153896: Fiona is seven years older than Gavin. Alex is 12 years younger than Gavin. Is the total of the ages of 73 how old is the youngest of them? \n" ); document.write( "
Algebra.Com's Answer #776217 by ramkikk66(644)\"\" \"About 
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Let Gavin's age be x
\n" ); document.write( "Then Fiona's age = x + 7
\n" ); document.write( "Then Alex's age = x - 12
\n" ); document.write( "Sum of the ages = x + x + 7 + x - 12 = 73 (given)
\n" ); document.write( "i.e. 3*x - 5 = 73
\n" ); document.write( "i.e. 3*x = 73 + 5 = 78
\n" ); document.write( "Solving for x, x = 78 / 3 = 26
\n" ); document.write( "So Gavin's age = 26
\n" ); document.write( "Fiona's age = 26 + 7 = 33
\n" ); document.write( "Alex's age = 26 - 12 = 14
\n" ); document.write( "Confirming, 26 +33 + 14 = 73
\n" ); document.write( "Youngest person is Alex whose age is 14
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