Whakaoti mō x
x = \frac{285}{4} = 71\frac{1}{4} = 71.25
Graph
Tohaina
Kua tāruatia ki te papatopenga
40x+120x-7800=3600
Whakamahia te āhuatanga tohatoha hei whakarea te 120 ki te x-65.
160x-7800=3600
Pahekotia te 40x me 120x, ka 160x.
160x=3600+7800
Me tāpiri te 7800 ki ngā taha e rua.
160x=11400
Tāpirihia te 3600 ki te 7800, ka 11400.
x=\frac{11400}{160}
Whakawehea ngā taha e rua ki te 160.
x=\frac{285}{4}
Whakahekea te hautanga \frac{11400}{160} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 40.
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