I would like to delete a variable in the output of the "Solve" command without changing the rest. For example, in the following code

```
p = 6;
A = Solve[{p == x + y + z + t && x > 0 && y >= x && z >= y &&
t > 0}, {x, y, z, t}, Integers]
```

we have the exit

```
{x -> 1, y -> 1, z -> 1, t -> 3},{x -> 1, y -> 1, z -> 2, t -> 2},{x -> 1, y -> 1, z -> 3, t -> 1},{x -> 1, y -> 2, z -> 2, t -> 1}
```

and I need to remove, for example, the last column for "t" and have:

```
{x -> 1, y -> 1, z -> 1},{x -> 1, y -> 1, z -> 2},{x -> 1, y -> 1, z -> 3},{x -> 1, y -> 2, z -> 2}
```

Without changing the code in the input, I mean, I just want this change in the output section to keep the original output there.