Whakaoti mō x
x=\frac{9x_{12}+4}{7}
Whakaoti mō x_12
x_{12}=\frac{7x-4}{9}
Graph
Pātaitai
Linear Equation
7x-4=9x12
Tohaina
Kua tāruatia ki te papatopenga
7x=9x_{12}+4
Me tāpiri te 4 ki ngā taha e rua.
\frac{7x}{7}=\frac{9x_{12}+4}{7}
Whakawehea ngā taha e rua ki te 7.
x=\frac{9x_{12}+4}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
9x_{12}=7x-4
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\frac{9x_{12}}{9}=\frac{7x-4}{9}
Whakawehea ngā taha e rua ki te 9.
x_{12}=\frac{7x-4}{9}
Mā te whakawehe ki te 9 ka wetekia te whakareanga ki te 9.
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