Question

Only 4 genius..... Other don't read...

If 2+9=7
& 7+0=9
then 7-8=0

so what 2+1=?

Answer 1

2=-2
7-8=0, 7=8, 0=8-7=1, so 1=0
2+1=-2+0=-2

Answer 2

unless you're using some crazy made up algebraic rules

Answer 3

u ansr is totly rong dude

Answer 4

*KRAZZy made up arithmetic rules

Answer 5

6

Answer 6

Ok, then please state which numbers we should treat as numbers and which ones we should treat as variables

Answer 7

0

Answer 8

TWO + ONE = 6 letters

Answer 9

Hey guys no guesswork, please post your reasoning

Answer 10

mathwhiz is correct

Answer 11

TWO + NINE = 7 letters
SEVEN + ZERO = 9 letters
SEVEN - EIGHT = 0 letters

Answer 12

GENIUS!

Answer 13

just solve 2+9=7 hw comes then next @Agent47

Answer 14

2+9=7
Solving for 2 gives:
2=7-9=-2

Answer 15

yes math is ryt :)

Answer 16

@mathwhiz99 is kinda right.. XD

Answer 17

So 2=-2
7-8=0, so -(7-8)=0, or 8-7=0, or 1=0
2+1=-2+0=-2
You can't say I'm wrong either ;D

Answer 18

well maybe you can lol, this whole thing might not be consistent with this equation:
7+0=9

Answer 19

yeah bt u r going on rong way @Agent47

Answer 20

lol yes, I understand how he did it, but I'm just bored so I'm just showing alternative solutions.. that give alternative answers ;)

Answer 21

:D