# Solution with and without presolve is different - can this behavior be expected?

**URL:** <https://discuss.ampl.com/t/solution-with-and-without-presolve-is-different-can-this-behavior-be-expected/335>\
**Category:** Support\
**Tags:** general, solvers, displays-results\
**Created:** [January 23, 2023, 2:47pm UTC](https://discuss.ampl.com/t/solution-with-and-without-presolve-is-different-can-this-behavior-be-expected/335 "2023-01-23T14:47:36Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![4er](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.ampl.com/4er/32/530_2.png) [@4er](https://discuss.ampl.com/u/4er)\
**Post date:** [January 24, 2023, 1:22am UTC](https://discuss.ampl.com/t/solution-with-and-without-presolve-is-different-can-this-behavior-be-expected/335/2 "2023-01-24T01:22:24Z")

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A response to this question appeared in [Google Groups](https://groups.google.com/g/ampl/c/w49RaOWYYh8), and the response is also mirrored in a [Discourse post](https://discuss.ampl.com/t/ampl-24485-solution-with-and-without-presolve-is-different-can-this-behavior-be-expected/327).

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