Whakaoti mō j
j=\frac{5}{57}\approx 0.087719298
Tohaina
Kua tāruatia ki te papatopenga
\left(3j-2\right)\times 7=\left(-1-4j\right)\times 9
Tē taea kia ōrite te tāupe j ki tētahi o ngā uara -\frac{1}{4},\frac{2}{3} nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te \left(3j-2\right)\left(4j+1\right), arā, te tauraro pātahi he tino iti rawa te kitea o 4j+1,2-3j.
21j-14=\left(-1-4j\right)\times 9
Whakamahia te āhuatanga tohatoha hei whakarea te 3j-2 ki te 7.
21j-14=-9-36j
Whakamahia te āhuatanga tohatoha hei whakarea te -1-4j ki te 9.
21j-14+36j=-9
Me tāpiri te 36j ki ngā taha e rua.
57j-14=-9
Pahekotia te 21j me 36j, ka 57j.
57j=-9+14
Me tāpiri te 14 ki ngā taha e rua.
57j=5
Tāpirihia te -9 ki te 14, ka 5.
j=\frac{5}{57}
Whakawehea ngā taha e rua ki te 57.
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