A triangular sail has a perimeter of 25 m. Side a is 2 m shorter than twice side b, and side c is 3 m longer than side b. Find the length of each side.

We know that perimeter of the triangle its a+b+c=25

a=2b-2

b=b

c=b+3

Now we can substitute it into our formula

2b-2+b+b+3=25

4b+1=25 / - 1

4b=24 / : 4

b=6 - its b side

a=2*6-2

a=12-2=10 - its a side

c=6+3=9 - its c side