Answer:
6 + 3 = 9
Step-by-step explanation:
In evaluation problems, they are essentially asking you to plug in the value they give you, into the variable it's assigned to. In this case, x is 3. So plug in the 3.
Once you plug in that 3, you will see it is 6 + 3. Now that you've gotten this far, it's just simple math! :D
6 + 3 = 9