P^3×q^2(p^4×q^n×r^3/r^-4)=p^7q^5r^7

what does n=

Step-by-step explanation:

Given:

The equation given is:

We simplify the given equation using the following law of indices:

Therefore,

Since the base on both the sides is same, therefore, their exponents must also be same. This gives,

Therefore, the value of 'n' is 3.

you are saying it as if a fact, not a question, but yes, you would be correct? ; )

step-by-step explanation:

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer