Question

Bina things of a number subtract 18 from it and divides the difference by 3 the result is -4 what is the number​

Answer 1

let us think the number as x.

(x subtract 18)divided by 3 = -4

(x-18)÷3 = -4

x-18 = -4×3

x-18 = -12

x = -12+18

x = 6

the number is 6

prove

x = 6

(x-18)÷3 = -4

(6-18)÷3 = -4

-12÷3 = -4

-4 = -4

proved

hope it helps.