Whakaoti mō x
x=-\frac{x_{4}}{5}+280
Whakaoti mō x_4
x_{4}=1400-5x
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x=1400-x_{4}
Tangohia te x_{4} mai i ngā taha e rua.
\frac{5x}{5}=\frac{1400-x_{4}}{5}
Whakawehea ngā taha e rua ki te 5.
x=\frac{1400-x_{4}}{5}
Mā te whakawehe ki te 5 ka wetekia te whakareanga ki te 5.
x=-\frac{x_{4}}{5}+280
Whakawehe 1400-x_{4} ki te 5.
x_{4}=1400-5x
Tangohia te 5x mai i ngā taha e rua.
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