1 | initial version |

If you put `%display latex`

you do not have to write `show(D)`

, simply write `D`

and start a new cell.

Regarding your second question, you can get the value of `x`

in the first (actually the only one) solution of `z`

by typing `z[0][x]`

2 | No.2 Revision |

If you put `%display latex`

you do not have to write `show(D)`

, simply write `D`

and start a new cell.

Regarding your second question, you can do:

```
SR.var("x") == x1
```

and it will look like what you want if you have `%display latex`

Regarding your last question, you can get the value of `x`

in the first (actually the only one) solution of `z`

by typing `z[0][x]`

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