document.write( "Question 163736: Please help with this. Thanks\r
\n" ); document.write( "\n" ); document.write( "Eric is 2 years younger than his brother Bill and 2 years older that his sister Beth. The sum of the 3 is 60 years. What is the age of each person? \n" ); document.write( "
Algebra.Com's Answer #120617 by ankor@dixie-net.com(22740)\"\" \"About 
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\n" ); document.write( "Write an equation for each statement, put it in terms of E
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\n" ); document.write( "Eric is 2 years younger than his brother Bill
\n" ); document.write( "E = Bi - 2
\n" ); document.write( "Bi = E + 2
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\n" ); document.write( "and 2 years older that his sister Beth.
\n" ); document.write( "E = Be + 2
\n" ); document.write( "Be = E - 2
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\n" ); document.write( " The sum of the 3 is 60 years.
\n" ); document.write( "E + Bi + Be = 60
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\n" ); document.write( "What is the age of each person?
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\n" ); document.write( "Substitute (E+2) for Bi and (E-2) for Be
\n" ); document.write( "E + (E+2) + E-2) = 60
\n" ); document.write( "2's cancel so you have:
\n" ); document.write( "3E = 60
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\n" ); document.write( "E = 20, then Bi = 22, Be = 18
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