SOLUTION: Hi, thank you in advance for your help. My son's problem is 6-y = -y+2 We both are scratching our heads with this one.

Algebra ->  Expressions-with-variables -> SOLUTION: Hi, thank you in advance for your help. My son's problem is 6-y = -y+2 We both are scratching our heads with this one.      Log On


   

Question 340037: Hi, thank you in advance for your help. My son's problem is 6-y = -y+2
We both are scratching our heads with this one.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
6-y+=+-y%2B2
First, I would replace y with x,
and write each side as an equation z+=+f%28x%29
z+=+6+-+x
z+=+-x+%2B+2
Now I can plot both lines and see where they intersect
+graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C+-x+%2B+6%2C+-x+%2B+2%29+
The lines are parallel, the slopes are both -1, so
there is no solution (place where the same x is on both lines,
and since I made x+=+y, no solution for y either