SOLUTION: what is the answer to 5(9+3)-3x4

Question 543271: what is the answer to 5(9+3)-3x4

Answer by lmeeks54(111) (Show Source): You can put this solution on YOUR website!
This problem is checking to see if you understand the order of operations (also called operator precedence). The precedence is recognized as:
...
operations inside parenthesis or brackets
exponents and roots
multiplication and division (in order they appear)
addition and subtraction (in order they appear)
...
This means, do what is found inside parenthesis first, then do exponentiation next, then multiplication and division in order from left to right, then addtion and subtraction in order from left to right.
...
In this case:
5 * (9 + 3) - 3 * 4
we do the 9 + 3 (= 12) and then multiply it by 5 (= 60)
then we do the 3 * 4 (= 12) and subtract it from the 60 we already computed (= 48)
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The answer to this problem is 48
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cheers,
Lee
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