20x-5
Answer:
Solution given;
perimeter=sum of all sides
=4x-1+9x-1+7x-3=20x-5
Hello!
P = 4x - 1 + 9x - 1 + 7x - 3 <=>
<=> P = 20x - 1 - 1 - 3 <=>
<=> P = 20x - 5
Good luck! :)
