Answer:
perimeter is 12x-6
Step-by-step explanation:
perimeter is the sum of all sides
3(x+2) + 2x+11 + 7x-23
distribute the 3 in the first term, then combine 'like terms'
3x+6 + 2x+11 + 7x-23
3x+2x+7x + 6+11+(-23)
12x-6
[tex]2x + 11 + 3x + 6 + 7x - 23[/tex]
[tex]12x - 6[/tex]
The answer is 12x - 6 because you the add all the sides together for the perimeters.
