Answer: 30
Step-by-step explanation:
To remember the order of operations, it is best to use the PEMDAS acronym; Parenthesis, Exponents, Multiplications, Division, Addition, Subtraction.
A good way to remember this is with the phrase: Please Excuse My Dear Aunt Sally.
So, applying PEMDAS to your question:
3 - 9/(-1) * 3
We first need to divide 9 by -1
3 + 9 * 3
Then, we multiply 9 by 3
3 + 27
Finally, we add 3 and 27
30
Hope this helps.
Cheers,
Andy
