I know it is wrong, which is why I am telling you what my mistake was originally

But failing to understand what your actual mistake was, coming up with -1+1=-2, and not -1+1=-0

The fact that you still don’t get it demonstrates your complete lack of understanding

That would be you, the one who thinks order matters, and that -1+1=-2, not -0.

Order does matter

Nope!

+10-1+1=10

+10+1-1=10

-1+10+1=10

+1+10-1=10

+1-1+10=10

-1+1+10=10

Put those all into a calculator, and/or ask an accountant about it.

that order is left to right.

And yet, going RIGHT TO LEFT +1-1+10=0+10=10, same answer... though I have no doubt you think it's +1-1+10=+1-11=-10

The original equation is written correctly

and 10-(1+1) isn't, hence your continued wrong answer

My mistake was doing the addition before the subtraction when the equation reads 10 - 1 + 1

No, your mistake was doing 10-(1+1) where the question reads 10-1+1, and not +10+1-1 <== this is addition first, you add all the positive numbers together first, then do the negative numbers This is literally the textbook way to do it

According to you 6a²b-11a²b+5a²b-7a²b+2a²b=6a²b-16a²b-9a²b=-19a²b, and yet the textbook quite clearly states it's -5a²b, which is because it's 6a²b+5a²b+2a²b-11a²b-7a²b=13a²b-18a²b, and NOT 6a²b-(11a²b+5a²b)-(7a²b+2a²b)

10-(1+1)=10-1-1 which is what you did, which is not 10-1+1. You "added" 1 to -1, and got -2 instead of 0

How are you still not getting this?

It's not me who's not getting it.

No it wasn’t.

Yes it was. Read the textbooks.

The original equation is written correctly but the logic is incorrect

No your logic is incorrect. You're incorrectly adding brackets to it.

in order to make it work the way I declared you have to do the equation x - y + z doing the y + z first

By putting it in brackets which is not how addition is done first. Doing addition first for x - y + z is x + z - y, not x - (y + z)

which was the mistake doing addition then subtraction

No, the mistake was you put the addition in brackets, -(1+1)=-2, not -1+1=+1-1=0. As per the textbook, the sum of any 2 numbers can only have 1 value. That 1 value for -1 and +1 is 0. -1+1=0, +1-1=0, not -1+1=-2

doing addition then subtraction instead of addition and subtraction in order from left to right

The rules are you either do addition then subtraction, OR you do left to right. There is no such thing as addition then subtraction left to right.

Addition then subtraction 10+1-1=11-1=10

Left to right 10-1+1=9+1=10

What you did 10-(1+1)=10-2=8

I see you are still being a bad teacher

says bad student, who didn't try what the teacher said to try

who refuses to listen

that would be you again. You didn't try it on a calculator, you didn't ask an accountant. You didn't even read and understand my examples. Read the textbook - it's not just me telling you this.

I am not continuing with you

Because you're unwilling to admit you're wrong and refuse to try what the teacher and textbook have told you to do, and also refuse to ask an accountant about it

The fact that you still don’t get it demonstrates bad faith

Nope, that's you again. You're even arguing with literal textbook examples.

willful ignorance, and an unwarranted superiority complex

Also you, thinking you're above Maths teachers, calculators, accountants, and Maths textbooks. According to you all of us are wrong, and only you are right. Get a grip