Ou know that a number 8 less than 60 is the number 52. so, you could rewrite your answer from the previous part as, "what number can you multiply by 4 to get 52? " this is just the definition of 52 divided by 4! so, what is the number x you are looking for?

For this case we define the following variable:

x: unknown number

We now write the equation that models the problem.

We have then:

From here, we clear the value of x:

Therefore, the number we seek is equal to 13.

The number we are looking for is equal to 13.

Addition equation = -4-0) + [(-13)-(-4)]

Answer =  -13

Step-by-step explanation:

For the small arrow in the diagram, the expression is (-4 - 0)

For the bog arrow, the expression will be -13 - (-4)

Adding both expressions

Addition = (-4-0) + [(-13)-(-4)]

Addition = (-4) + (-13+4)

Addition = -4 + (-9)

Addition = -4-9

Addition = -13