document.write( "Question 960221:
\n" ); document.write( "The three sides of an equilateral triangle are 4a and 3b and a+b+c.
\n" ); document.write( "That is: 4a = 3b = a+b+c
\n" ); document.write( "Solve for a and b. \n" ); document.write( "

Algebra.Com's Answer #586919 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"4a=3b\"$
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\n" ); document.write( ".
\n" ); document.write( " $\"4a=a%2Bb%2Bc%7D%7D%5D%0D%0A2.%7B%7B%7B3a=b%2Bc\"$
\n" ); document.write( "From eq. 1,
\n" ); document.write( " $\"12a=9b\"$
\n" ); document.write( "From eq. 2,
\n" ); document.write( " $\"12a=4b%2B4c\"$
\n" ); document.write( "Subtract the two equations,
\n" ); document.write( " $\"12a-12b=9b-4b-4c\"$
\n" ); document.write( " $\"5b-4c=0\"$
\n" ); document.write( " $\"5b=4c\"$
\n" ); document.write( " $\"highlight%28b=%284%2F5%29c%29\"$
\n" ); document.write( "Then,
\n" ); document.write( " $\"4a=3%284%2F5%29c\"$
\n" ); document.write( " $\"highlight%28a=%283%2F5%29c%29\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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