Question

Can you solve this??

Answer 1

20

Explanation:

first lets apply PEMDAS

`9 - (9 / 9) + 9 - (9 / 9)`

9 ÷ 9 = 1

1 × (-) = -1

9-(-1)= 10

( than do the same for other side )

and than you get

`10 + 10`

the answer is 20

Answer 2

`9-\underline{9/ 9} + 9 - \underline{9 / 9}\implies 9-\underline{1}+9-\underline{1}\implies 8+9-1\implies 17-1\implies 16\\`

recall PEMDAS, MD are before AS, and both are performed from left to right.