Infinitely many: they are the same line!
1
Only 1.
It has two solutions and they are: x = 3.230396696 and x = -2.063730029
There are two solutions for x: x=11 and x=-7
Infinitely many: they are the same line!
1
1
Only 1.
It has two solutions and they are: x = 3.230396696 and x = -2.063730029
There are two solutions for x: x=11 and x=-7
One solution: x = -4
1
0
2
x = 4y = 1Only one solution:x = 1y = 0.25
2x - y = 8 x + y = 1 These are your two equations. They will have two solutions since you have two variables. The solutions are x=3 and y=-2