SOLUTION: How would you graph x+y+z= -7?

Algebra.Com
Question 371669: How would you graph x+y+z= -7?
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Like this:
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That's the equation of a plane in 3-space.
3 points are needed to define a plane.
2x-y+3z=6
y = -2x - 3z + 6
Pick values for x and z, solve for y, for each point.

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