Perimeter - general

Solve: the perimeter of a triangle is 4x+1.if two of it side are(x+2) and (x-1). Find the third side.

Correct answer:

c = 2x

Step-by-step explanation:

a=x+2 b = x1  o = 4x+1  o = a+b+c = (x+2)+(x1)+c o = 2x+1+c  4x+1 =2x+1+c 4x = 2x+c 2x = c  c=2x

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