Answer:
i hope it can help you!
Step-by-step explanation:
6y + 12 = 3y - 3
Subtract 3y on both sides
3y + 12 = -3
Subtract 12 on both sides
3y = -15
Divide by 3 on both sides
y = -5
If I understood coorectly, you're looking for the fourth root of 81. This exercise can be solved by remembering that extracting the fourth root of a number is the same as raising that number to the power of 1/4.
We also need the prime factorization of 81, which is

So, the fourth root of 81 is 81 raised to the power of 1/4, which means
![\sqrt[4]{81} = \sqrt[4]{3^4} = (3^4)^{\frac{1}{4}}](https://tex.z-dn.net/?f=%20%5Csqrt%5B4%5D%7B81%7D%20%3D%20%5Csqrt%5B4%5D%7B3%5E4%7D%20%3D%20%283%5E4%29%5E%7B%5Cfrac%7B1%7D%7B4%7D%7D%20)
Now, use the property of exponents
to convert the expression into
