Comment on A - ( B x C ) + ( D x E ) = A - ( B x C ) - ( D x E ) if A > B + C + D + E
Arkouda@lemmy.ca 1 day agoNope, yet again you just did 10-(1+1), which is wrong for 10+1-1. It gives 10 in any order. 10+1-1=11-1=10 <== did addition first, got 10. Accountants would have a nightmare if order mattered. “Did we receive this payment first, or this invoice? The order matters! ARGH!”
I know it is wrong, which is why I am telling you what my mistake was originally. The fact that you still don’t get it demonstrates your complete lack of understanding.
Order does matter, and that order is left to right. My mistake was doing the addition before the subtraction when the equation reads 10 - 1 + 1.
How are you still not getting this?
No, your mistake was adding brackets, 10-(1+1) ISN’T how to do addition first. 10+1-1 is. Ask an accountant! 😂 As you discovered 10-(1+1)=10-1-1, which isn’t 10+1-1, nor 10-1+1. 10-1-1=8, which is what you did - 10-1-1=10-(1+1) - 10-1+1=10, 10+1-1=10.
No it wasn’t. The original equation is written correctly but the logic is incorrect because in order to make it work the way I declared you have to do the equation x - y + z doing the y + z first (which was the mistake doing addition then subtraction instead of addition and subtraction in order from left to right.)
I see you still didn’t try it on a calculator yet then
I see you are still being a bad teacher who refuses to listen, so I am not continuing with you. The fact that you still don’t get it demonstrates bad faith, willful ignorance, and an unwarranted superiority complex.
SmartmanApps@programming.dev 1 day ago
But failing to understand what your actual mistake was, coming up with -1+1=-2, and not -1+1=-0
That would be you, the one who thinks order matters, and that -1+1=-2, not -0.
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.
And yet, going RIGHT TO LEFT +1-1+10=0+10=10, same answer
and 10-(1+1) isn’t, hence your continued wrong answer
No, your mistake was doing 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
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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
It’s not me who’s not getting it.
Yes it was. Read the textbooks.
No your logic is incorrect. You’re incorrectly adding brackets to it.
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)
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
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
says bad student, who didn’t try what the teacher said to try
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.
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
Nope, that’s you again. You’re even arguing with literal textbook examples.
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
Arkouda@lemmy.ca 1 day ago
No, I am saying you are wrong. No one else.
You.
The saddest, and funniest, part is that you are so egotistical that you don’t see why you are wrong.
Maybe you will get it one day, but I won’t be there for it.
Self reflection is good.
SmartmanApps@programming.dev 1 day ago
And textbooks, calculators, accountants, and @sxan@midwest.social, who also explicitly pointed out that what you did was 10-(1+1). I see you didn’t read the textbook either then.
Nope, also all the other parties listed above, who all agree with me
That would be you again, after it has been explained to you many times, by me, other commentators, and Maths textbooks.
Again that applies to you only, the only one here who thinks 10-1+1=8 when doing addition first.
How do you know when you haven’t tried it yet?