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Usimov [2.4K]
3 years ago
7

How to simplify 3(4+3•5)-5

Mathematics
2 answers:
Serjik [45]3 years ago
4 0
Well first you multiply 5 times 3 which is 15 then you add 4 which is 19 and 19 times 3 is 57 57-5 is 52
myrzilka [38]3 years ago
3 0
If you have something like this, you should always do what's in the parentheses first.

Here is the order:

Parenthesis
Exponents
Division/multiplication
Addition/subtration

You'll always start inside of the parenthesis if there are any. So if you had 2 (7+3) -4, you would start by doing what's inside and have this left 2 (10) -4 (after that do it left to right)

Your question is 3(4+3•5)-5
We have to do (4+3•5) first.
REMEMBER THE ORDER - YOU MUST DO MULTIPLICATION AND DIVISION BEFORE ADDITION AND SUBTRATION.
So you will have this. (4+15)
Add as normal and you get 19.
Now we have 3(19)-5
You can already do this left to right.
Three times nineteen is 57, minus five 52.
Your answer: B


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