4 times the difference of 4 and a number is 24

10

Step-by-step explanation:

Let "a number" = x

4 (x - 4) = 24

Isolate the x. First, divide 4 from both sides

(4 (x - 4)) / 4 = (24) / 4

x - 4 = 6

Add 4 to both sides

x - 4 (+4) = 6 (+4)

x = 6 + 4

x = 10

10 is your answer for "a number"