Answer:
x = 
Step-by-step explanation:
We can start simplifying this equation by expanding the parenthesis and cross multiplying.

The exponent 5 and 7x are equal:
Divide both sides by 7

-Chetan K
Answer: 4^-2 and 2^-4.
Step-by-step explanation: You chose the right ones.
Answer: 10.00
Step-by-step explanation:
You had to multiply and divide and see what you get.