Quote:
Originally Posted by zamwini
Your in for a fun time in math this year. 
allright, I think i got it. You should be able to substitute letters with numbers, and still stay true. (I haven't taken math in 2 months, so I might be completely wrong.)
So, we are gonna subsititute A and B with 1, because they are equal.
1=1
then multiply, stays the same.
1=1
here, the entire problem falls apart. even if we were to continue and subtract B-
0=0
No way to simplify or do anything, so the problem is false. |
Yup, he just summed it up.
That equation is akin to dividing by zero.
If you stick to variables, it works, but this is math, and in the end the variables represent real numbers, so you should be able to replace the letters with numbers, and work out that problem.
Thing is, you can't.
Try this equation agian and again, by using numbers instead of letters. Actually solve it, and you'll see that it is in fact impossible to solve, so no, your teacher is wrong. Either your teacher is wrong, or he was testing you and you all failed the test.