Common Core State Standards for Math
HSA-REI.C.5
6b9cc50c-d7cc-11e8-824f-0242ac160002 6b9cca4c-d7cc-11e8-824f-0242ac160002 6b9a44f8-d7cc-11e8-824f-0242ac160002 HSA-REI.C HSA-REI.C.5
Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.
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