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So for number 21? so sorry

So for number 21? so sorry
asked 33.3k views
2 votes
So for number 21? so sorry

So for number 21? so sorry-example-1
asked
User Polonskyg
by
8.2k points

2 Answers

1 vote
(6*3-12)^2/9+7=
(18-12)^2/16=
6^2/16=
36/16=
2.25


answered
User Rami Isam
by
8.1k points
6 votes
Order of Operations (PEMDAS)
Parenthesis-Exponents-Multiplication-Division-Addition-Subtraction
(6 x 3 -12)^2 / 9+7
(18-12)^2 / 9+7
6^2 / 9+7
36 / 9 + 7
4 + 7
11
11 is your answer.
Hope this helps
answered
User Bjg
by
8.4k points
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