How do I solve for the set of solutions?

[weak edge]

Hello there,
I was wondering how I can tell that in the 4.) c.) the freely choosable x’s are x2 and x5 for Lambda and My respectively

[tight robin]

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[weak edge]

Here it is for x1, x3 and x5

[subtle aspen]

can you post a clearer picture of the problem? I don't understand your question

[timber lichen]

@weak edge

Hallo

Sind sie noch wach?

[weak edge]

This is the whole task and I guess I don’t understand how to do it