5, 6, 7, 7 are 24 points (5-(7/7))*6 6*(5-7/7) (5-7÷7)×6=24

5, 6, 7, 7 are 24 points (5-(7/7))*6 6*(5-7/7) (5-7÷7)×6=24

(5-7÷7)×6=24
Only this