document.write( "Question 834516: Jeff is 5 years older than Maria. Bob is 3 years older than twice Maria's age. Jeff, Maria, and Bob's ages added together equal 42. How old is Jeff? \n" ); document.write( "
Algebra.Com's Answer #503186 by ankor@dixie-net.com(22740)\"\" \"About 
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ages represented by j, m and b, write an equation for each statement
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\n" ); document.write( "Jeff is 5 years older than Maria.
\n" ); document.write( "j = m+5
\n" ); document.write( " Bob is 3 years older than twice Maria's age.
\n" ); document.write( "b = 2m+3
\n" ); document.write( "Jeff, Maria, and Bob's ages added together equal 42.
\n" ); document.write( "j + m + b = 42
\n" ); document.write( "Replace j and b using the 1st two equations
\n" ); document.write( "(m+5) + m + (2m+3) = 42
\n" ); document.write( "4m + 8 = 42
\n" ); document.write( "4m = 42 - 8
\n" ); document.write( "4m = 34
\n" ); document.write( "m = 34/4
\n" ); document.write( "m = 8.5 yrs is Marie
\n" ); document.write( ":
\n" ); document.write( "j = 8.5 + 5
\n" ); document.write( "j = 13.5 yrs is Jef
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\n" ); document.write( "Usually get in integer solution to these, but this one is the exception.\r
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