Ebyenkana bisatu, ebitamanyiddwa bisatu

Ebyenkana bisatu: x+y−z=9\displaystyle x + y - z = 9; 6x+6y−z=17\displaystyle 6x + 6y - z = 17; ne 14x−7y+2z=42\displaystyle 14x - 7y + 2z = 42. Nyiga mode, 4, 1. Olunyiriri olusooka: 1, enter, 1, enter, plus minus, 1, enter, 9, enter. Olunyiriri olw'okubiri: 6, enter, 6, enter, plus minus, 1, enter, 17, enter. Olunyiriri olw'okusatu: 14, enter, plus minus, 7, enter, 2, enter, ne 42.