Answer:
3.93939394
rounded it would be 3.934
Step-by-step explanation:
90-n=3n
90=4n
22.5=n
Final answer 22.5
The axioms in addition help in developing theorems about multiplication because multiplication, in simple terms, repeated addition.
As an example,
This addition operation
3 + 3 + 3 + 3 = 12
can be expressed as a multiplication operation
3 x 4 = 12
<span />