Hi,

i'm using sage in a course and we came up with some problems
concerning the absolute value and the solve-function.
We started to solving the equation abs(abs(x-2)-1)==4 for real x.
But even easier equations makes problems:

solve(abs(x)==5,x)

Is there a reason why sage isn't able to give a useful answer to this?
And even using abs_symbolic gives no result.

How can i reformulate my equation, so that sage is able to solve it?

What i found out myself: if i use sqrt(x^2) as a substitute for the
absolute value, it works.
But it would be much nicer if one could use just abs (without further
thinking).

-MRK-

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