Question

Find the perimeter. Simplify your answer.
6a-5
a+1
a+1
6a-5

Answer 1

14a-8

Explanation:

A perimeter is the sum of the length of each side. So we can find the perimeter by adding: (a+1)+(a+1)+(6a-5)+(6a-5).

Combine like terms to get: 14a+2-10 = 14a-8.

Without knowing what a is, the perimeter is 14a-8.

Answer 2

2(6a - 5) + 2(a + 1) =

= 12a - 10 + 2a + 2 =

= 12a + 2a - 10 + 2 = 14a - 8