Question

Help?
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Answer 1

you get y on one side, everything else on other side of '='
graph both equations, if they intersect, only one solution, if they are same line, there are infinitely many, if they are parallel, there is no solutions

Answer 2

IT is either one and if it isn't one than its the non of the above option

Answer 3

Hey I am here for rescue:
For the first question just graph them and you will get two parallel lines. This means that the are no solutions so the answer will be none :)
For the second question the solution will be the intersection of the lines which is at (4,0)

Answer 4

for first multiply (1) by 2
6x+8y=24
but 6x+8y=-12
so there are two parallel lines .