document.write( "Question 1103024: Bill is three times older than jane. If bill were 9 years younger and jane were 6 years older, their ages would differ by 21 years. How old is Jane \n" ); document.write( "
Algebra.Com's Answer #717741 by ankor@dixie-net.com(22740)\"\" \"About 
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Wrte an equation for each statement
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\n" ); document.write( "Bill is three times older than jane.
\n" ); document.write( "b = 3j
\n" ); document.write( " If bill were 9 years younger and jane were 6 years older, their ages would differ by 21 years.
\n" ); document.write( "(b-9) - (j+6) = 21
\n" ); document.write( "b - 9 - j - 6 = 21
\n" ); document.write( "b - j - 15 = 21
\n" ); document.write( "b - j = 21 + 15
\n" ); document.write( "b - j = 36
\n" ); document.write( "Replace b with 3j (from the 1st statement)
\n" ); document.write( "3j - j = 36
\n" ); document.write( "2j = 36
\n" ); document.write( "j = 18 yrs is Jane's age
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\n" ); document.write( "you can find b, and check solutions in the 2nd statement
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