document.write( "Question 373965: the measure of two sides of an eqilateral triangle are 3x+15 and 7x-5.what is the measure of the third side? \n" ); document.write( "

Algebra.Com's Answer #266161 by Fombitz(32388) $\"\"$ $\"About$

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Since it's equilateral,
\n" ); document.write( " $\"3x%2B15=7x-5\"$
\n" ); document.write( " $\"-4x=-20\"$
\n" ); document.write( " $\"x=5\"$
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\n" ); document.write( " $\"3x%2B15=7x-5=3%285%29%2B15=15%2B15=30\"$
\n" ); document.write( " $\"s=30\"$
\n" ); document.write( "All sides have a length of $\"30\"$ .
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