Question

e) 1+ {2-[3+ (x-4)-5]:6}-7=8;​

Answer 1

1+ {2-[3+ (x-4)-5]:6}-7=8

2-[3+ (x-4)-5]:6=8+7-1

2-[3+ (x-4)-5]:6=14

-[3+ (x-4)-5]:6=14-2 /×(-1)

[3+ (x-4)-5]:6=-12

3+ (x-4)-5=-12×6

3+x-4-5=-72

x=-72+6

x=-66