Whakaoti mō b
b=-\frac{1}{4}=-0.25
Tohaina
Kua tāruatia ki te papatopenga
-5b-\frac{1}{2}=\frac{3}{4}
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-5b=\frac{3}{4}+\frac{1}{2}
Me tāpiri te \frac{1}{2} ki ngā taha e rua.
-5b=\frac{3}{4}+\frac{2}{4}
Ko te maha noa iti rawa atu o 4 me 2 ko 4. Me tahuri \frac{3}{4} me \frac{1}{2} ki te hautau me te tautūnga 4.
-5b=\frac{3+2}{4}
Tā te mea he rite te tauraro o \frac{3}{4} me \frac{2}{4}, me tāpiri rāua mā te tāpiri i ō raua taurunga.
-5b=\frac{5}{4}
Tāpirihia te 3 ki te 2, ka 5.
b=\frac{\frac{5}{4}}{-5}
Whakawehea ngā taha e rua ki te -5.
b=\frac{5}{4\left(-5\right)}
Tuhia te \frac{\frac{5}{4}}{-5} hei hautanga kotahi.
b=\frac{5}{-20}
Whakareatia te 4 ki te -5, ka -20.
b=-\frac{1}{4}
Whakahekea te hautanga \frac{5}{-20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.
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