SOLUTION: I am having alot of trouble with this problem. plz help 3y+x=-1 x=-3y

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Question 416996: I am having alot of trouble with this problem. plz help
3y+x=-1
x=-3y
Found 2 solutions by ewatrrr, MathLover1:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

solving by substitution

  x = -3y

 3y + x = -1

 3y + (-3y) = -1

      0 ≠ -1   there is NO solution

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
3y%2Bx=-1+.....1
x=-3y.........2
------------------------...
x%2B3y=-1+.....1 .....solve for y
3y=-x-1+
y=-%281%2F3%29x-1+

3y=-x.........2
y=-%281%2F3%29x
graph:
+graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C+-%281%2F3%29x-1%2C+-%281%2F3%29x%29+

From the graph, we can see that the two lines are parallel and will never intersect.
So there are no solutions and the system is inconsistent.