Three times the number decreased by 6 is 12. What is the number?

Question

Three times the number decreased by 6 is 12. What is the number?

Answer 1

Let's assume the number be x

 

Therefore,

 

Three times the number = 3x

 

Three times the number decreased by 6 = 3x - 6

 

Three times the number decreased by 6 is 12 would yield 3x - 6 = 12

 

3x - 6 = 12 (add 6 both sides)

 

3x = 18 (divide by 3 both sides)

 

x = 6 (Answer)