Posted by **CJ** on Sunday, September 12, 2010 at 3:53pm.

Write and simplify an expression for the perimeter of the triangle. side A)3x, side B) 5x-4 and side C)2x+5.

Thank you!

- 7th grade math -
**Chad**, Sunday, September 12, 2010 at 11:51pm
First, start out by simply adding the sides together into a single equation:

3x+5x-4+2x+5

Next, combine like items:

3x+5x+2x = +10x

-4+5 = +1

That would leave you with:

10x+1

That is as simplified as it gets, so that means you have your answer now.

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