If "equations-" is intended to be "equations", the answer is y = -2.
If the first equation is meant to start with -3x, the answer is y = 0.2
{-1,-2}
(10, 2)
It's an inconsistent pair of equations, for which there is no solution.
y = 0 and x = 8.
There is no solution for those equations because the lines are parallel so, they never touch.
x = y = 3
{-1,-2}
There are two solutions and they are: x = -1 and y = 3
No solution
-10
7
Yes.
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.
The graphs of those two equations are straight lines, each of which passes through the origin. The origin is the common solution ... the point (0, 0).
I notice that the ratio of the y-coefficient to the x-coefficient is the same in both equations. I think that's enough to tell me that their graphs are parallel. So they don't intersect, and viewed as a pair of simultaneous equations, they have no solution.