document.write( "Question 210538This question is from textbook Geometry
\n" ); document.write( ": I cannot seem to get the answer of this problem to match up write with the question. If a triangle has a perimeter of 84 meters and side lengths of 6x-3, 6x+4, and 8x+3, then what does x equal? \n" ); document.write( "

Algebra.Com's Answer #159078 by Earlsdon(6294) $\"\"$ $\"About$

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The perimeter is the sum of the lengths of the three sides and this is given as 84 meters.
\n" ); document.write( "(6x-3)+(6x+4)+(8x+3) = 84
\n" ); document.write( "(6x+6x+8x)+(-3+4+3) = 84
\n" ); document.write( "20x+4 = 84 Subtract 4 from both sides.
\n" ); document.write( "20x = 80 Divide both sides by 20.
\n" ); document.write( "x = 4
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