document.write( "Question 139512: In Jill's yard there are twice as many rattlesnakes than in Bob's yards for a
\n" ); document.write( "total of 15 rattlessnakes. Wrute an algebraic expression to show the total number of rattlesnakes.
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Algebra.Com's Answer #101730 by solver91311(24713)\"\" \"About 
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# of snakes in Jill's yard: j
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\n" ); document.write( "\n" ); document.write( "j + b = 15 (there are a total of 15 snakes -- and maybe you are done right here because this is an algebraic expression for the total number of snakes. But read on...)\r
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\n" ); document.write( "\n" ); document.write( "j = 2b (Jill's yard has twice as many as Bob's)\r
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\n" ); document.write( "\n" ); document.write( "2b + b = 15 (substituting 2b for j)\r
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\n" ); document.write( "\n" ); document.write( "3b=15
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