document.write( "Question 998308: the perimeter of a triangle is 73 inches. If two sides are of equal length and the third side is 7 inches longer than the others, find the length of the three sides \n" ); document.write( "
Algebra.Com's Answer #616111 by addingup(3677)\"\" \"About 
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Let's call the unknown sides x. Since we have two sides, we have 2x.
\n" ); document.write( "And the long side, the problem says, is x+7
\n" ); document.write( "2x+x+7= 73 Add x on left, and subtract 7 on both sides
\n" ); document.write( "3x= 66 Divide both sides by 3
\n" ); document.write( "x= 22 is the length of each short leg, and the long leg is
\n" ); document.write( "22+7= 29
\n" ); document.write( "Proof
\n" ); document.write( "2 equal sides:
\n" ); document.write( "2*22= 44 Plus the long side:
\n" ); document.write( "22+7= 29
\n" ); document.write( "_ _ -------
\n" ); document.write( "Total: 73 We have the correct answer
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