Помагите,(89-15)•[]=0, 1•(10+[][])=20, []•(78+12)=90, ([][]-9)•99=99

Question

Помагите,(89-15)•[]=0, 1•(10+[][])=20, []•(78+12)=90, ([][]-9)•99=99

Answer 1

(89-15)*0=0, 1*(10+10)=20, 1*(78+12)=90, (10-9)*99=99