Answer:
The answer to your question is Solution (1, -4)
Explanation:
Data
Equation 1 y = 3x - 7
Equation 2 y - 2x = -6
See the graph below
This system of equations only has one solution because the lines cross in one point.
The system would not have solutions if the lines do not cross.
The system would have many solutions if they were the same lines.