Respuesta :

Answer:

21

Step-by-step explanation:

PEMDAS:

Parenthesis

Exponent

Multiplication and Division

Addition and Subtraction

21-3+3

18+3

21

Hope this helps!

Answer:

21.

Step-by-step explanation:

Using Order of Operations, the division is done first.

21 - 3 + 18/6

= 21 - 3 + 3

= 18 + 3

= 21.