Whakaoti mō x
x=15
Graph
Tohaina
Kua tāruatia ki te papatopenga
21x-645+43x=315
Me tāpiri te 43x ki ngā taha e rua.
64x-645=315
Pahekotia te 21x me 43x, ka 64x.
64x=315+645
Me tāpiri te 645 ki ngā taha e rua.
64x=960
Tāpirihia te 315 ki te 645, ka 960.
x=\frac{960}{64}
Whakawehea ngā taha e rua ki te 64.
x=15
Whakawehea te 960 ki te 64, kia riro ko 15.
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