Did I distributed the subtraction too soon.....

[eddy2017]

When using Order of Operations to evaluate, we finish simplifying inside a grouping before working outside it. You'd distributed the subtraction too soon, above.
(2+15)-[(15÷3)+(8+5÷2)]
(2+15)-(5)+(8+5/2)

then I tried to rectify it. please, take a look above and tell me if you see something wrong with that.
thanks,
eddy
I know the rule states that we work within brackets and parentheses first and then move on to the other terms...

 

[lev888]

When using Order of Operations to evaluate, we finish simplifying inside a grouping before working outside it. You'd distributed the subtraction too soon, above.
(2+15)-[(15÷3)+(8+5÷2)]
(2+15)-(5)+(8+5/2)

then I tried to rectify it. please, take a look above and tell me if you see something wrong with that.
thanks,
eddy

Don't understand "You'd distributed the subtraction too soon"

 

[eddy2017]

it was an equation I was solving with the help of mmm. he was teaching me about how to use grouping symbols and how to work with them.
here is what i posted and what he commented.

(2+15)-[(15÷3)+(8+5÷2)]
(2+15)-(15/3)-(8+5/2)

When using Order of Operations to evaluate, we finish simplifying inside a grouping before working outside it. You'd distributed the subtraction too soon, above.
He has asked me to go and post it here i in the forum.
my first post is the attempt at rectifying the 'too soon distribution'.

 

[lev888]

it was an equation I was solving with the help of mmm. he was teaching me about how to use grouping symbols and how to work with them.
here is what i posted and what he commented.

When using Order of Operations to evaluate, we finish simplifying inside a grouping before working outside it. You'd distributed the subtraction too soon, above.
He has asked me to go and post it here i in the forum.
my first post is the attempt at rectifying the 'too soon distribution'.

I've never heard of distributing subtraction. You distribute multiplication over addition/subtraction. In this case it's multiplication by -1: -(a+b) = -a-b

 

[eddy2017]

lev, is what I did in post#1 correct?

 

[lev888]

lev, is what I did in post#1 correct?

-(a+b) = -a-b

 

[mmm4444bot]

He has asked me to go and post it here i in the forum.

No, I did not ask you to continue our private conversation in a public thread. In fact, I had told you the opposite.

I would prefer to continue that discussion using the original conversation.

Please put your understanding to practice, by posting your corrected presentation in that conversation.

[imath]\;[/imath]

 

[eddy2017]

Okay, I am sorry