DemoChecker Inequalities

Automatic Checking

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Check if the example is correctly calculated

Then replace it with your own calculation.

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{ "type": "solutionelement", "name": "solutionelement-checkerdemo", "metadata": {}, "data": { "contents": [{"id": "sdelement-demodata"}], "contentdata": { "sdelement-demodata": { "type": "sdelement", "name": "sdelement-demodata", "metadata": { "creator": "onlineuser", "created": "Fri Nov 09 2018 08:33:55 GMT+0000 (UTC)", "modifier": "onlineuser", "modified": 1558680157311, "tags": [], "lang": "common", "removed": false }, "data": { "dstepdata": { "task-onlineuser-20181109083502903-853": { "readonly": false, "task": [], "assumption": [], "observation": [], "derivmotivation": [], "term": [ { "text": "5\\left(x-3\\right)\\le15", "readonly": false, "fillable": false, "attrs": {} }, { "text": "5x-15\\le15", "readonly": false, "fillable": false, "attrs": {} }, { "text": "5x\\le30", "readonly": false, "fillable": false, "attrs": {} }, { "text": "x\\le6", "readonly": false, "fillable": false, "attrs": {} } ], "relation": [ { "text": "\\Leftrightarrow", "readonly": false, "fillable": false, "attrs": {} }, { "text": "\\Leftrightarrow", "readonly": false, "fillable": false, "attrs": {} }, { "text": "\\Leftrightarrow", "readonly": false, "fillable": false, "attrs": {} } ], "motivation": [ { "text": "simplify", "readonly": false, "fillable": false, "subshidden": false, "subderiv": [], "attrs": {} }, { "text": "add 15 to both sides", "readonly": false, "fillable": false, "subshidden": false, "subderiv": [], "attrs": {} }, { "text": "divide both sides with 5", "readonly": false, "fillable": false, "subshidden": false, "subderiv": [], "attrs": {} } ] } }, "caption": { "text": "Example solution:", "readonly": true, "fillable": false, "attrs": {} }, "dsteps": [ { "id": "task-onlineuser-20181109083502903-853", "type": "task" } ] } } } } }

Inequalities

Check if the inequalities example to the left is calculated correctly. You can exchange it with your own calculation, and check that one as well.

Try other examples

Use the checker always when practicing math