Answer:
3x=4
Step-by-step explanation:
We have the following general rule for exponents:

then, in this case we have the following:

therefore, the answer is 3
Answer:
None (no solutions)
Step-by-step explanation:
-10q=-10q-7 (add 10q to both sides to get the costant 7 by itself)
-10q+10q=-10q+10q-7
0=-7 ( zero will never equal -7 hence there are no solutions to this equation)
I think it is C sorry if i am wrong but i am confident