pre math question

Question

The perimeter of a triangle is 26 inches. then two equations can be written as

1. z = 2x and y = x + 2.
2. x = 2z and x = y + 2.
3. x = 2z and y = x + 2.

Answer 1

Since the shortest side is represented by the variable x, the longest side would have to be represented with 2x

The remaining side (which is 2 inches longer than the shortest side x) would be represented with x + 2.

The only equations that show both of these is option 1 (z = 2x and y = x + 2)