Question

I’ll really appreciate it if you help me out on this one .

Answer 1

1. 6x+15

2. x=5

Explanation:

Since the triangle has sides that are the same, we know that 15 is one side and since 15/3 = 5 so x=5. Also for perimeter you add all the sides so 3x+3x+15 and add like terms so you get 6x+15.

Answer 2

21 is the value of x (you add the sides up)

Explanation: