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
<em>Bringing</em><em> </em><em>all</em><em> </em><em>the</em><em> </em><em>x</em><em> </em><em>terms</em><em> </em><em>together</em><em> </em><em>and</em><em> </em><em>constants</em><em> </em><em>together</em><em>:</em>
Perimeter of triangle= 2x +x +3x -6 +8 +1
<em>Simplify:</em>
Perimeter of triangle= 6x +3
