Can someone plz help me with this one problem plz!!

Answer:
No
Step-by-step explanation:
Just substitute the letters. x = 7 and y = 0. Then just solve and see if it works out.
0 = 3 · 7 - (-7)
0 = 21 - (-7)
0 = 28
That is a false answer so no. (7,0) is not a solution.