Whakaoti mō x
x=-15
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x+6=4x\times \frac{5}{4}-4\times 6
Tē taea kia ōrite te tāupe x ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 4x, arā, te tauraro pātahi he tino iti rawa te kitea o 4x,4,x.
7x+6=5x-4\times 6
Whakareatia te 4 ki te \frac{5}{4}, ka 5.
7x+6=5x-24
Whakareatia te -4 ki te 6, ka -24.
7x+6-5x=-24
Tangohia te 5x mai i ngā taha e rua.
2x+6=-24
Pahekotia te 7x me -5x, ka 2x.
2x=-24-6
Tangohia te 6 mai i ngā taha e rua.
2x=-30
Tangohia te 6 i te -24, ka -30.
x=\frac{-30}{2}
Whakawehea ngā taha e rua ki te 2.
x=-15
Whakawehea te -30 ki te 2, kia riro ko -15.
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