You have 3 ways there, learn them.

]]>If you want a recommendation you should learn all of them but gAr's you should learn first.

]]>If you would tell me the AOPS method, I'd learn another one.

]]>Yes, that is another way.

Hi Agnishom;

You do it with your package like this:

```
Solve[{a*x + 25 - 5 (x - b) == 0 /. x -> 1,
a*x + 25 - 5 (x - b) == 0 /. x -> 0}, {a, b}]
```

]]>

After that, I would substitute x = 0 and x = 1 into that identity and solve for a and b simultaneously.

]]>I'd say it's

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