Question 33480
Its very simple 

Perimeter of triangle = sum of its three sides 

here three sides of triangle are 2x-5, 3x+1, and 4x+2...apply it in the above fromula and we get

perimeter = (2x-5)+ (3x+1) + (4x+2)
 
apen brackets and we get

perimeter = 2x - 5 + 3x + 1 + 4x + 2 

put like varibles and we get

 =  2x + 3x + 4x - 5 + 1 + 2 

solving like vairables we get......

= 9x - 5 + 3 

= 9x - 2 

hope this will help you.

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