Whakaoti mō z
z=3
Tohaina
Kua tāruatia ki te papatopenga
3z\times 5+3\times 2=17z
Tē taea kia ōrite te tāupe z ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 3z, arā, te tauraro pātahi he tino iti rawa te kitea o z,3.
15z+3\times 2=17z
Whakareatia te 3 ki te 5, ka 15.
15z+6=17z
Whakareatia te 3 ki te 2, ka 6.
15z+6-17z=0
Tangohia te 17z mai i ngā taha e rua.
-2z+6=0
Pahekotia te 15z me -17z, ka -2z.
-2z=-6
Tangohia te 6 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
z=\frac{-6}{-2}
Whakawehea ngā taha e rua ki te -2.
z=3
Whakawehea te -6 ki te -2, kia riro ko 3.
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