Question

Find (-31)÷{(-30)-(30)+(-1)}


I think answer is 15 given in the back side of book but I don't know how so I ask for help plz anyone ​

Answer 1

Answer:

(-31)÷{(-30)-(30)+(-1)}

(-31)÷{-61}

=> 0.50819

Answer 2

Answer:

56 is the answer for this