Question

How do you I solve x+y=6

Answer 1

y = -x + 6

x = -y + 6

Answer 2

If we add these two together we get
2x = 0 x = 0 Substituting the value 0 for x into either of the original expressions gives: y = -6 So the point (0, -6) is the only one at which the two lines intersect.What we have are two lines, one with slope 1 and the other with slope -1, but both of which have the y-intercept -6.