Let the number is x
Five times a number means the number is multiply by 5
Since our number is x
So, five times a number = 5 multiply by x
five times a number = 5x
Similarly :
Twelve times a number means the number is multiply by 12
Since our number is x
So, 12 times a number = 12 multiply by x
Twelve times a number = 12x
Difference between five times a number and twelve = Twelve times a number - five times a number
Difference between five times of x and twelve = 12x - 5x
Difference between five times of x and twelve = 7x
Difference between five times a number and twelve is 7
Difference between five times a number and twelve is seven
Answer : Difference between five times a number and twelve is seven