Whakaoti mō m
m=-18
Tohaina
Kua tāruatia ki te papatopenga
5m-3\left(7-1-\left(-2m\right)\right)=0
Hei kimi i te tauaro o 1-2m, kimihia te tauaro o ia taurangi.
5m-3\left(7-1+2m\right)=0
Ko te tauaro o -2m ko 2m.
5m-3\left(6+2m\right)=0
Tangohia te 1 i te 7, ka 6.
5m-18-6m=0
Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te 6+2m.
-m-18=0
Pahekotia te 5m me -6m, ka -m.
-m=18
Me tāpiri te 18 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
m=-18
Me whakarea ngā taha e rua ki te -1.
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