Question

-1 <= x -1 <= 2x+1

Answer 1

\[x \ge0\]

Answer 2

i figured
can u explain it to me

Answer 3

well x-1 is greater than or equal to -1 at (0,infinity)
and 2x-1 is greater than or equal to x-1 at (-2,infinity)
so its just where both parts are true which is (0,infinity)

so pretty much split the whole thing up as
-1</=x-1
and
x-1</=2x+1

solve both and c where they have similar answers