Question

how does
2x+y=1 and x+1=4-y

Answer 1

Yo have to find x and y

y = 1-2x
y = 3-x

y = y

1-2x = 3-x
x = -2
y = 5

Answer 2

They're two different equations.

Answer 3

Yes, I know, but if you graph them, they intersect at a point and that point is where they have the same value

Answer 4

The point connects the two equations together

Answer 5

And that point is (-2,5) graphically