what is the missing value in the expression {(- 276- (-276) - 15 = ? + (-2) + (-11)

 

Hello Shreyansh, given {-276 -(-276) - 15} on L H S
So L H S = - 276 + 276 - 15 = -15
Now on R H S 
x + (-2) + (-11) = x -2 - 11 = x - 13
Equating L H S and R H S
we get - 15 = x - 13
Or 0 = x - 13 + 15
==> 0 = x + 2
So x = -2 
Missing is - 2