Question

If 3 is added to a certain number, the results is 15 less than three times the number. Find the number

Answer 1

number = 9

Explanation:

number = x

3 is added to a number = (x+3) result

3 times the number = 3x

15 less than three times the number = 3x-15

the results is 15 less than three times the number

x+3 = 3x -15

3x-x= 3+15

2x = 18

x=9