For example

x+y+z=0
And now want to issolate Y.

y:=-(x+z)

Does smath know how to do that? And if so, is it capable of doing simplifications when doing so with more complicated equations?

You can use Maple Tools or Maxima plugins for this.



Links:

1. Maple Tools
2. Maxima Plugin

Wrote

x y z=0
And now want to isolate Y.

y:=-(x z)

Does Smath know how to do that? And if so, is it capable of doing simplifications when doing so with more complicated equations ?

... more complicated functions YES, attached some examples.
Welcome to Smath Community ... Jean.

Contour SOLVE AstroidHyperbola COLLECT FindRoots Copy.sm (139.44 KiB) downloaded 660 time(s).

Wrote

Does smath know how to do that?

Yes, this worksheet is "pluginless" and can isolate expressions from an equation in some cases.

isol_n2e.pdf (52.97 KiB) downloaded 343 time(s).
isol_n2e.sm (73.81 KiB) downloaded 647 time(s).

For instance, it works also in the SMath in the cloud: https://en.smath.com/cloud/worksheet/HpYWFrCC

Wrote

And if so, is it capable of doing simplifications when doing so with more complicated equations?

Simplification and isolation aren't the same. The exposed concept can be extended to develop a series of rules to apply to simplify expressions for some type of 'simplify' function, or rules can be added to solve more complicated equations.

Best regards.
Alvaro.

Wrote

Yes, this worksheet is "pluginless" and can isolate expressions from an equation in some cases.

...
Alvaro.

o_o

Razonar, that was mindblowing

This is very good homebrew function. Thanks Razonar.
And now this is the part where Jean steps in and post something totally irrelevant.