Question

3-{2+(11-15)-[5+(-3+1)]+8}

Answer 1

3 - {2+(11-15)-[5+(-3+1)]+8}
3 - {2 + (-4) - [ 5 + (-2)] + 8}
3 - {2 + (-4) - [ 3 ] + 8}
3 - {2 - 4 - 3 + 8}
3 - {10 - 7}
3 - {3}
3 - 3
0