Question 547536
what is the definiton of a solution of three linear equation?
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If it's 3 linear equations in 3 variables, such as x, y & z, equation specifies a plane.
The solution is the point common to the 3 planes.
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If no 2 planes are parallel, then the intersection of any 2 planes is a line.
The solution is the point of intersection of the line and the 3rd plane.