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Taya2010 [7]
3 years ago
8

6 * ( 12 - 7.5 ) - 7

Mathematics
2 answers:
romanna [79]3 years ago
6 0
The answer is 20
Steps:

12-7.5 = 4.5

4.5x6=27

27-7=20
Paladinen [302]3 years ago
5 0

Answer: 20

Explanation: Alright, so basically you’re going to want to use PEMDAS (Parenthesis, Exponents, Multiplication/ Division, Addition/ Subtraction)

* just means multiply.. sooo the problem looks like this:

6x(12-7.5)-7

We’ll start at the parentheses :)

So (12-7.5) = 4.5

Now our problem looks like: 6x(4.5)-7

Following PEMDAS, the next thing to come up is multiplication! So we’re going to multiply 6 by 4.5 ...

6x4.5=27

After this our problem looks like: 27-7

So now it’s just simple math...

27-7= 20

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