Answer:
its 1
Step-by-step explanation:
eh
The answer would be 7(2x+3y+z) or 7(2x+3y+1z) (both would be considered as correct)
2.
x=3 y=3
3-3=0
3+3=6
If 3x-3y equals 0, then what's x+y. It concluded to 6
