document.write( "Question 60114: All three sides of the triangle have equal length. One side is 9x - 4 and another is 2(3x + 4). What is the perimeter? \n" ); document.write( "

Algebra.Com's Answer #41268 by funmath(2933) $\"\"$ $\"About$

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All three sides of the triangle have equal length. One side is 9x - 4 and another is 2(3x + 4). What is the perimeter?
\n" ); document.write( "First find x. If all sides are equal then:
\n" ); document.write( "9x-4=2(3x+4)
\n" ); document.write( "9x-4=6x+8
\n" ); document.write( "9x-6x-4=6x-6x+8
\n" ); document.write( "3x-4=0+8
\n" ); document.write( "3x-4=8
\n" ); document.write( "3x-4+4=8+4
\n" ); document.write( "3x=12
\n" ); document.write( "3x/3=12/3
\n" ); document.write( "x=4
\n" ); document.write( "That's what x is, substitute 4 in for x in either side.
\n" ); document.write( "The sides are each:
\n" ); document.write( "9(4)-4=36-4=32
\n" ); document.write( "For fun, try this with the other side and you should get 32 also.
\n" ); document.write( "You find the perimeter by adding all the sides together, there are three sides to a triangle:
\n" ); document.write( " $\"highlight%2832%2B32%2B32=96%29\"$
\n" ); document.write( "Happy Calculating!!! \n" ); document.write( "

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