To evaluate an expression , we must first simplify the expression below the vinculum, then inside the small bracket , then inside the curly bracket , and finally inside the square bracket using the DMAS rule,
Thus, 46−[26−(14−(15−4÷2×2))]
=46−[26−(14−(15−2×2))]
[Division : 4÷2=2 inside()]
=46−[26−(14−(15−4))]
[Multiplication : 2×2=4 inside()]
=46−[26−(14−11)]
[Removing small bracket]
=46−[26−3]
[Removing curly bracket]
=46−23
[Removing square bracket]
=23
∴ The value of 46−[26−(14−(15−4÷2×2))] is 23.