Perimeterof square and triangle

Question

claire purchased just enough fencing to border either a rectangular or triangular garden, as shown whose perimeters are the same. 2x-2 and x-2 rectangle and x-1, x-1, x triangle. how many feet of fencing did she buy?

Answer 1

2(2x - 2 + x - 2) = x - 1 + x - 1 + x

4x - 4 + 2x - 4 = 3x - 2

6x - 8 = 3x - 2

3x = 6

x = 2

 

How much fence?