ANSWER
The substitution property of equality.
EXPLANATION
We know that:

and that

Since x=5 or 5=x , we can substitute x for 5 wherever we see x in the given equation.
When we do that, we obtain;

This is what we refer to as the substitution property of equality.
Answer:
909
Step-by-step explanation:
I'm not sure if I'm right plz tell me if I'm wrong
300 mg/tablet
150 tabletsx(300mg/1 tablet)=150x300=45000 mg=45 grams