document.write( "Question 1052477: The perimeter of an equilateral triangle is 15 inches more than the perimeter of a​ square, and the side of the triangle is 7 inches longer than the side of the square. Find the side of the triangle.​ (Hint: An equilateral triangle has three sides the same​ length.)
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Algebra.Com's Answer #667806 by rajagopalan(174)\"\" \"About 
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Let the side of square = x \"
\n" ); document.write( "Then Side of eq Triang=x+7 \"
\n" ); document.write( "Perimeter of the square=4x \"
\n" ); document.write( "Perimeter of Triang=3(x+7)=3x+21 \"
\n" ); document.write( "but 3x+21 is 15\" more than perimeter of square
\n" ); document.write( "giving 3x+21=4x+15
\n" ); document.write( "rewriting 4x+15=3x+21
\n" ); document.write( "collecting similar terms on one side
\n" ); document.write( "we get 4x-3x=21-15
\n" ); document.write( "resulting in x=6
\n" ); document.write( "side of square = 6\"
\n" ); document.write( "side of triang=6+7=13\"
\n" ); document.write( "peri of triang =13x3=39\"
\n" ); document.write( "peri of square=6x4=25\"
\n" ); document.write( "difference=29-42=15\"
\n" ); document.write( "Hwnce ok
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