A number divided by 6 minus -3 equals 12​

Let the number be x.

Therefore, by the problem

x/6-(-3) = 12

or, x/6+3 = 12

or, x/6 = 12-3

or, x/6 = 9

or, x = 9 × 6

or, x = 54

The number is 54.

15

Step-by-step explanation:

First you have to find a number that can be divided by six to get fifteen which is 90

Then 90 divided by six  = 15 then 15 - 3 = 12

Hope it helps

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm