Answer: 9
Step-by-step explanation:
To find the perimeter of the Triangle, add all 3 sides together
So 2x + 3x + 4x = 81
9x = 81
Divide both sides by 9
x=9
Answer:
x= log120/7log3
Step-by-step explanation:
7x=log3 120
7x= log120/log3/7
x= log120/7log3
-3.5 is the answer
4-11=-7
3-1=2
-7/2=-3.5