Answer:
6x +3
Step-by-step explanation:
Perimeter of a triangle is the sum of all the length of its sides. Since a triangle as 3 sides, add the 3 lengths together.
Perimeter of triangle= 2x -6 +x +8 +3x +1
Bringing all the x terms together and constants together:
Perimeter of triangle= 2x +x +3x -6 +8 +1
Simplify:
Perimeter of triangle= 6x +3
