Whakaoti mō x
x=10
Graph
Tohaina
Kua tāruatia ki te papatopenga
5000-50x+30x=4800
Me tāpiri te 30x ki ngā taha e rua.
5000-20x=4800
Pahekotia te -50x me 30x, ka -20x.
-20x=4800-5000
Tangohia te 5000 mai i ngā taha e rua.
-20x=-200
Tangohia te 5000 i te 4800, ka -200.
x=\frac{-200}{-20}
Whakawehea ngā taha e rua ki te -20.
x=10
Whakawehea te -200 ki te -20, kia riro ko 10.
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