document.write( "Question 74508: A total of 28 bikes have 64 wheels. Some have 2 wheels and some have 3. How many have three wheels? \n" ); document.write( "

Algebra.Com's Answer #53486 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
x = number of 3-wheel bikes
\n" ); document.write( "28-x = number of 2 wheel bikes
\n" ); document.write( " $\"3x+%2B+2%2828-x%29+=+64\"$
\n" ); document.write( " $\"3x+%2B+56+-2x+=+64\"$
\n" ); document.write( " $\"x+=+8\"$ answer
\n" ); document.write( "check
\n" ); document.write( " $\"3x+%2B+2%2828-x%29+=+64\"$
\n" ); document.write( " $\"3%2A8+%2B+2%2A20+=+64\"$
\n" ); document.write( " $\"24+%2B+40+=+64\"$
\n" ); document.write( " $\"64+=+64\"$
\n" ); document.write( "OK \n" ); document.write( "

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