Answer:
x = 
Step-by-step explanation:
Let the number be x.

x - 3 = 10x
9x = -3
x = 
Answer:
1/8^4
Step-by-step explanation:
when divinding exponents with the same base, subtract the power. you get 8^-4. since the problem specifies no negative exponents you need to simplify. this give you 1/8^4
I hope this helps you
6.10.7.10.10^1
2.3.7.10^3