Check your text book for how to solve it.
No solution
7
When (the graph of the equations) the two lines intersect. The equations will tell you what the slopes of the lines are, just look at them. If they are different, then the equations have a unique solution..
-1
No.
x=3
Solving equations in two unknowns requires two independent equations. Since you have only one equation there is no solution.
The two equations are linear.
Solving equations in two unknowns requires two independent equations. Since you have only one equation there is no solution.
x = y = 3
(10, 2)
In the equations Y=X-1 and Y=-X+1, the solution is (1,0)