Answer:
Step-by-step explanation:
3(x+5)
if you want to solve it, it would be
3x+5
pls mark me brainliest
Answer:
this is the answer please give brainliest
Answer:

Step-by-step explanation:
<u><em>The picture of the question in the attached figure</em></u>
we know that
The perimeter of a triangle is the sum of the length of their three sides
so

where
a,b,c are the length sides of the triangle
In this problem we have

substitute and solve for the missing length
