Whakaoti mō y
y=6
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(y-2\right)\times 8=\left(y+10\right)\times 2
Tē taea kia ōrite te tāupe y ki tētahi o ngā uara -10,2 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te \left(y-2\right)\left(y+10\right), arā, te tauraro pātahi he tino iti rawa te kitea o y+10,y-2.
8y-16=\left(y+10\right)\times 2
Whakamahia te āhuatanga tohatoha hei whakarea te y-2 ki te 8.
8y-16=2y+20
Whakamahia te āhuatanga tohatoha hei whakarea te y+10 ki te 2.
8y-16-2y=20
Tangohia te 2y mai i ngā taha e rua.
6y-16=20
Pahekotia te 8y me -2y, ka 6y.
6y=20+16
Me tāpiri te 16 ki ngā taha e rua.
6y=36
Tāpirihia te 20 ki te 16, ka 36.
y=\frac{36}{6}
Whakawehea ngā taha e rua ki te 6.
y=6
Whakawehea te 36 ki te 6, kia riro ko 6.
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