Whakaoti mō x
x = \frac{28}{3} = 9\frac{1}{3} \approx 9.333333333
Graph
Tohaina
Kua tāruatia ki te papatopenga
9x-4=80
Pūruatia ngā taha e rua o te whārite.
9x-4-\left(-4\right)=80-\left(-4\right)
Me tāpiri 4 ki ngā taha e rua o te whārite.
9x=80-\left(-4\right)
Mā te tango i te -4 i a ia ake anō ka toe ko te 0.
9x=84
Tango -4 mai i 80.
\frac{9x}{9}=\frac{84}{9}
Whakawehea ngā taha e rua ki te 9.
x=\frac{84}{9}
Mā te whakawehe ki te 9 ka wetekia te whakareanga ki te 9.
x=\frac{28}{3}
Whakahekea te hautanga \frac{84}{9} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.
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