Oh, AnnOMaly came to the same result already. Great to have that confirmed.
Please do the following equation
The confusion occurs because the equation is written incorrectly. No "÷" would be used in a properly-written equation. For it to equal 9, it should be written:
2 (1+2)=x (six halves - times - one plus two)
For it to equal 1, it should be written
2(1+2) =x (six - divided by the following: two - times - one plus two)
what is the order of operations?
Before answering, let us note that since skill in science is the reason students are required to learn algebra; and since orders of operations appear only in certain forms, then in these pages we present only those forms that the student is even remotely likely to encounter in the actual practice of algebra. The division sign ÷ is never used in scientific formulas, and the multiplication cross × is used only in scientific notation -- therefore the student will never see the following:
3 + 6 × (5 + 3) ÷ 3 − 8.
Such a problem would be purely academic, which is to say, of no practical value. It never even comes up in arithmetic!
Ah this takes me back . . . . 14 years old and fantasizing about my sexy 30+ year old maths teacher . . . thanks guys!
The title had me concerned that this was another one of those end of the world date threads...
Yeah, I got 9 too.
My TI-34 returns 9.
My parietal lobe says 9.
The notation is not algebraic. At least not how I learned it.
I am subbing this out for the original formula:
That is the order of operations.
Order of operations means you do what is in brackets first, so.
So you have a divide and a multiply operation. Same order, no different than add subtract. So you go left to right.
3(3) = x
536 + 70 = 606 - 2520 = 1914 + 1 generatiogeneration = THE END