Question

Please someone can help me with #3. Thanks

Answer 1

I think you just need to use PEMDAS.

Answer 2

Do you know what PEMDAS is?

Answer 3

no

Answer 4

Alright. PEMDAS stands for Parentheses Exponents Multiplication Division Addition and Subtraction. This is our order of operations, the order in which we do things. So in this case we need to start off with our Parentheses. ( ) [ ] and {}.

Answer 5

So in our problem we will first look for this type of parentheses ( ) and solve the problem in there.

Answer 6

2 * { 6 + [ 1 2 / (3 + 1) ] } - 1

In this case we need to solve (3 + 1) first.

3 + 1 = 4

So our problem becomes

2 * { 6 + [ 1 2 / 4 ] } - 1

Answer 7

Now we must look for the next set of parentheses. Sense we have already solved ( ) this parentheses we need to solve [ ] this type next.

2 * { 6 + [ 12 / 4 ] } - 1

So we solve [ 12 / 4 ]

12 / 4 = 3

So our equation now becomes

2 * { 6 + 3 } - 1

Answer 8

Now we need to solve the last pair of parentheses { }.

2 * { 6 + 3 } - 1

So we solve { 6 + 3 }

6 + 3 = 9

Therefore our equation becomes

2 * 9 - 1

Answer 9

We have now eliminated all of our parentheses and can move on to the next step in PEMDAS. Which is Exponents, but this problem doesn't have any exponents. So we move on to the next step which is Multiplication. We have multiplication in our problem so we must solve it.

2 * 9 - 1

2 * 9 = 18

Our equation now looks like this

18 - 1 =

Now we move on to our next step in PEMDAS which is Division. This problem doesn't have any division anymore. So we move on to the next set which is Addition. We don't have any addition anymore. Thus we move on to our last step of PEMDAS, which is Subtraction. We have subtraction left to do.

18 - 1 = The answer to question three!

Answer 10

Thanks TreeFarmer for your help and God bless you.

Answer 11

Can you tell me if #6 is correct

Answer 12

Yes, I would say you solved six correctly.

Answer 13

Do you understand why six is correct?

Answer 14

yes