Question

26+{[(26-9+3)-√36÷3+3-18]-66}

Answer 1

26+{[(26-9+3)-√36÷3+3-18]-66}
26 +{[(17 +3) - 6 : 3 + 3- 18] -66}
26 + {[ 20 - 2 + 3 - 18]-66}
26 + { 3 - 66}
26 + { -63}
26 - 63 
- 37