document.write( "Question 631368: Please help me solve this equation:\r
\n" ); document.write( "\n" ); document.write( "Triangle ABC is isosceles with AC = BC. If AC = 3x + 8, BC = 5x - 4, and AB = 2x + 4, find the perimeter of the triangle. \r
\n" ); document.write( "\n" ); document.write( "I have tried solving this by myself already by solving for x and then substituting it, but the answers I get are not equal. It says that AC and BC are supposed to be congruent, but my answers are very far from each other. However, I think I got the formula for this correctly. Since it isn't a regular polygon, the formula for the perimeter is the two sides + the base, right? Please correct me if I'm wrong.
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Algebra.Com's Answer #397525 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
set the two sides equal
\n" ); document.write( "3x+8=5x-4\r
\n" ); document.write( "\n" ); document.write( "12=2x
\n" ); document.write( "6=x
\n" ); document.write( "check
\n" ); document.write( "30-4=26
\n" ); document.write( "ok
\n" ); document.write( "18+6=24
\n" ); document.write( "ok
\n" ); document.write( "The perimeter is the sum of the three sides.\r
\n" ); document.write( "\n" ); document.write( "p=3x+8+5x-4+2x+4
\n" ); document.write( "p=24+24+16
\n" ); document.write( "p=64
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