document.write( "Question 1143066: There are a total of 5 bicycles and tricycles in a park.There are 12 wheels. How many tricycles are there?
\n" ); document.write( "A)2
\n" ); document.write( "B)3
\n" ); document.write( "C) 6
\n" ); document.write( "D)7
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Algebra.Com's Answer #763834 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
b bicycles
\n" ); document.write( "t tricycles
\n" ); document.write( "\"b%2Bt=5\"\r
\n" ); document.write( "\n" ); document.write( "\"2b%2B3t=12\"-----------accounting for wheels\r
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\n" ); document.write( "\n" ); document.write( "\"system%282b%2B3t=12%2C2b%2B2t=10%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"E1-E2\":
\n" ); document.write( "\"highlight%28t=2%29\"-----------two tricycles
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