Answer:
8x + 8y
8 (x +y)
Step-by-step explanation:
When adding or subtracting, the terms should have exact variables like x.
3x + 5x + 8y
Here 3 and 5 have the same variable x so you can add them. (3+5=8)
8x + 8y
Now take out common number (here it's 8):
8 (x + y)
