Question

please tell me how to solve this question. ​

Answer 1

HOPE ITS HELPS U.....

PLZ MARKS AS BRAINLIEST.....

Answer 2

Heya mate !
Here is your answer...
The required number is 9.

Proof :-
$(9 \times 9 + 7) \div 2 - (9 - (9 - 2) \div 7) = 36 \\ = > (81 + 7) \div 2 - (9 - 7 \div 7) = 36 \\ = > 88 \div 2 - (9 - 1) = 36 \\ = > 44 - 8 = 36 \\ = > 36 = 36 \\ hence \: \: proved. \\ hope \: \: it \: \: helps \: \: you \: \: mate \: \: . \\ regards.....$