Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x+x\times 2=x\times 10-3
Tē taea kia ōrite te tāupe x ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x.
9x=x\times 10-3
Pahekotia te 7x me x\times 2, ka 9x.
9x-x\times 10=-3
Tangohia te x\times 10 mai i ngā taha e rua.
-x=-3
Pahekotia te 9x me -x\times 10, ka -x.
x=3
Me whakarea ngā taha e rua ki te -1.
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