Question

if x means - ; + means ÷ ; - means x and ÷ means + ; then 15-2÷900+90x100=??

Answer 1

here is your answer by Sujeet yaduvanshi,
A/q
15-2÷900+90*100
A/q
15*2+900÷90-100
15*2+10-100
30+10-100
40-100
-60

that's all

Answer 2

× means -
+ means ÷
- means ×
÷ means +
So,
15 - 2 ÷ 900 + 90 × 100
Substituting the value
15 × 2 + 900 ÷ 90 - 100
30 + 10 - 100
40 - 100
-60