{"action":"created","issue":{"url":"https://api.github.com/repos/sympy/sympy/issues/15307","repository_url":"https://api.github.com/repos/sympy/sympy","labels_url":"https://api.github.com/repos/sympy/sympy/issues/15307/labels{/name}","comments_url":"https://api.github.com/repos/sympy/sympy/issues/15307/comments","events_url":"https://api.github.com/repos/sympy/sympy/issues/15307/events","html_url":"https://github.com/sympy/sympy/issues/15307","id":364895833,"node_id":"MDU6SXNzdWUzNjQ4OTU4MzM=","number":15307,"title":"sympy.solve gives wrong solution for 2-D linear system","user":{"login":"davidsaxton","id":14928863,"node_id":"MDQ6VXNlcjE0OTI4ODYz","avatar_url":"https://avatars2.githubusercontent.com/u/14928863?v=4","gravatar_id":"","url":"https://api.github.com/users/davidsaxton","html_url":"https://github.com/davidsaxton","followers_url":"https://api.github.com/users/davidsaxton/followers","following_url":"https://api.github.com/users/davidsaxton/following{/other_user}","gists_url":"https://api.github.com/users/davidsaxton/gists{/gist_id}","starred_url":"https://api.github.com/users/davidsaxton/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/davidsaxton/subscriptions","organizations_url":"https://api.github.com/users/davidsaxton/orgs","repos_url":"https://api.github.com/users/davidsaxton/repos","events_url":"https://api.github.com/users/davidsaxton/events{/privacy}","received_events_url":"https://api.github.com/users/davidsaxton/received_events","type":"User","site_admin":false},"labels":[{"id":217212377,"node_id":"MDU6TGFiZWwyMTcyMTIzNzc=","url":"https://api.github.com/repos/sympy/sympy/labels/solvers.solve","name":"solvers.solve","color":"0000FF","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2018-09-28T13:46:15Z","updated_at":"2018-09-29T11:07:51Z","closed_at":null,"author_association":"NONE","body":"Issue seems to be present in both sympy 1.2 and sympy 1.3. Example failing equation:\r\n```\r\neq1 = sympify('Eq(12513*u + 2*v - 219093, -5726*u - v)')\r\neq2 = sympify('Eq(-2*u + 8, 2*u - 40)')\r\nsolve([eq1, eq2])\r\n\r\nOutput: {u: 0, v: 73031}\r\nShould output: {u: 12, v: 75}\r\n```"},"comment":{"url":"https://api.github.com/repos/sympy/sympy/issues/comments/425636838","html_url":"https://github.com/sympy/sympy/issues/15307#issuecomment-425636838","issue_url":"https://api.github.com/repos/sympy/sympy/issues/15307","id":425636838,"node_id":"MDEyOklzc3VlQ29tbWVudDQyNTYzNjgzOA==","user":{"login":"smichr","id":90703,"node_id":"MDQ6VXNlcjkwNzAz","avatar_url":"https://avatars3.githubusercontent.com/u/90703?v=4","gravatar_id":"","url":"https://api.github.com/users/smichr","html_url":"https://github.com/smichr","followers_url":"https://api.github.com/users/smichr/followers","following_url":"https://api.github.com/users/smichr/following{/other_user}","gists_url":"https://api.github.com/users/smichr/gists{/gist_id}","starred_url":"https://api.github.com/users/smichr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/smichr/subscriptions","organizations_url":"https://api.github.com/users/smichr/orgs","repos_url":"https://api.github.com/users/smichr/repos","events_url":"https://api.github.com/users/smichr/events{/privacy}","received_events_url":"https://api.github.com/users/smichr/received_events","type":"User","site_admin":false},"created_at":"2018-09-29T11:07:51Z","updated_at":"2018-09-29T11:07:51Z","author_association":"MEMBER","body":"> how should I go about it.\r\n\r\nThe simplest thing would be to apply the diff above (or make it by hand and take a look at how the surrounding routine, esp. `_invert` is doing its part of solving the equations)."}}
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