Order of Operations Help: [2-(4-4(7-6)+6]+5=1

jmadams

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This may belong in basic math, but I am having trouble determining correct answer to this problem.

[2-(4-4(7-6)+6]+5=1 (I already know the answer)

Here is my work according to my understanding of the order of operations.

[2-(4-4(7-6)+6]+5 (I do the innermost parentheses first)
[2-(4-4(1)+6]+5 (I multiply 4*1)
[2-(4-4+6]+5 (I go from left to write, subtracting 4-4)
[2-(0+6]+5 (I add 0+6)
[2-(6)]+5 (I multiply 2*-6)
-12+5=-7

The answer is supposed to be 1. What am I doing wrong?
 
This may belong in basic math, but I am having trouble determining correct answer to this problem.

[2-(4-4(7-6)+6]+5=1 (I already know the answer)

Here is my work according to my understanding of the order of operations.

[2-(4-4(7-6)+6)]+5 (I do the innermost parentheses first)
[2-(4-4(1)+6)]+5 (I multiply 4*1)
[2-(4-4+6)]+5 (I go from left to write, subtracting 4-4)
[2-(0+6)]+5 (I add 0+6)
[2-(6)]+5 (I multiply 2*-6) ... No!! [2-(6)]+5 = [2-6]+5 = -4 + 5 = 1
-12+5=-7

The answer is supposed to be 1. What am I doing wrong?


You have problem with your post - one of your parentheses "(" is not matched.

In the last part you have a mistake
 
This may belong in basic math, but I am having trouble determining correct answer to this problem.

[2-(4-4(7-6)+6]+5=1 (I already know the answer)

Here is my work according to my understanding of the order of operations.

[2-(4-4(7-6)+6]+5 (I do the innermost parentheses first)
[2-(4-4(1)+6]+5 (I multiply 4*1)
[2-(4-4+6]+5 (I go from left to write, subtracting 4-4)
[2-(0+6]+5 (I add 0+6)
[2-(6)]+5 (I multiply 2*-6)
-12+5=-7

The answer is supposed to be 1. What am I doing wrong?
As Subhotosh Khan indicates, you have a missing parenthesis. Where that parenthesis is determines the answer to the problem:
[2-(4-4(7-6))+6]+5
=[2-(4-4(1))+6]+5
=[2-(4-4)+6]+5
=[2-0+6]+5
=[2+6]+5
=8+5
=13
or, as Subhotosh Khan has it,
[2-(4-4(7-6)+6)]+5 = 1
or
...
for a total of 5 answers (some of which may be the same, i haven't checked)
 
Should be:
2 - (4 - 4(7 - 6) + 6) + 5

In future, COUNT your brackets: MUST be EVEN :cool:
Personally I count my money (when I have some). Not only must the number of brackets be even but the number of open brackets must equal the number of closed brackets.
Denis has always been just a little off since I have known him.

Most importantly, subtraction never become multiplication.
 
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