Whakaoti mō w
w = \frac{36}{35} = 1\frac{1}{35} \approx 1.028571429
Tohaina
Kua tāruatia ki te papatopenga
-\frac{1}{2}w=-\frac{9}{5}+\frac{9}{7}
Me tāpiri te \frac{9}{7} ki ngā taha e rua.
-\frac{1}{2}w=-\frac{63}{35}+\frac{45}{35}
Ko te maha noa iti rawa atu o 5 me 7 ko 35. Me tahuri -\frac{9}{5} me \frac{9}{7} ki te hautau me te tautūnga 35.
-\frac{1}{2}w=\frac{-63+45}{35}
Tā te mea he rite te tauraro o -\frac{63}{35} me \frac{45}{35}, me tāpiri rāua mā te tāpiri i ō raua taurunga.
-\frac{1}{2}w=-\frac{18}{35}
Tāpirihia te -63 ki te 45, ka -18.
w=-\frac{18}{35}\left(-2\right)
Me whakarea ngā taha e rua ki te -2, te tau utu o -\frac{1}{2}.
w=\frac{-18\left(-2\right)}{35}
Tuhia te -\frac{18}{35}\left(-2\right) hei hautanga kotahi.
w=\frac{36}{35}
Whakareatia te -18 ki te -2, ka 36.
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