SOLUTION: I am using substitution. I got this problem: y=3x-1 3x-y=-1. I got to this point: 3x-(3x+1)=-1 , but i cant find x

Algebra ->  Expressions-with-variables -> SOLUTION: I am using substitution. I got this problem: y=3x-1 3x-y=-1. I got to this point: 3x-(3x+1)=-1 , but i cant find x       Log On


   



Question 448747: I am using substitution. I got this problem:
y=3x-1
3x-y=-1.
I got to this point:
3x-(3x+1)=-1 , but i cant find x

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
y=3x-1
3x-y=-1.
I got to this point:
3x-(3x+1)=-1 , but i cant find x
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y=3x-1 --> 3x-y = +1
3x-y=-1
------------
3x-y = +1
3x-y = -1
The equations are inconsistent, so there's no solution.
If you graph them, the lines are parallel, no intersection, no solution.
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I got to this point:
3x-(3x-1)=-1 , but i cant find x **** you got the sign wrong
+1 = -1 no solution