### Equation problem

I have the ~~equation
~~equation

```
x + y = 15
```

and I'm looking for solution only in the range x=1..9 and y=1..9, x and y both integer
Is there a sage-command to do that?

I tried it ~~with
~~with

```
var('x, y')
assume(x,"integer")
assume(x>0)
assume(y, "integer")
assume(y>0)
```~~solve(x+y==15,x,y)~~solve(x+y==15,x,y)

The result ~~was
~~was

```
(t_0, -t_0 + 15)
```

obviously right, but not 6,9 7,8 8,7 and 9,6

Thanks in advance
Bert Henry