Answer:
9y
Step-by-step explanation:
It's simple. Adding like terms. Let y represent anything you want. Lets just say for this case, y is equal to 5. So the equation would then be 6(5) + 3(5). Which equals 30+15=45. So when we go back to the 9y [9(5)]. It would be 9*5 which equals to 45. Hope that gave a brief overview and helped.
