when 9 is added to the number that is produced by tripling the number x, the result is equal to 6 times the number that is 3 less than x. what is x ?
3x + 9 = 6(x - 3) simplify
3x + 9 = 6x - 18
9 + 18 = 6x - 3x
27 = 3x
x = 9
thank you :D
