Answer:
−
3
−
9
n
Step-by-step explanation:
Simplify the expression
Answer:
No solution
Step-by-step explanation:

Lets consider the equation 2.
Here we multiply the LHS and RHS with (-1).

Hence,

When we add the equations we get,

As 0 doesn't equal to -1, answer is d) No solution
Answer:
30000
Step-by-step explanation:
take 7 it is above four so it goes up but
you need then one behide it to its a 5 so it goes up