# For #6x+9 = 6x + a#, what is the value of #a# such that there's infinitely many solutions?

##### 1 Answer

#### Explanation:

If a were any other answer, they wouldn't be equal anymore. If a were

For example. If we put

Therefore, if

If a were any other answer, they wouldn't be equal anymore. If a were

For example. If we put

Therefore, if