Whakaoti mō x
x=40
Graph
Tohaina
Kua tāruatia ki te papatopenga
180=4x-20+x
Pahekotia te 3x me x, ka 4x.
180=5x-20
Pahekotia te 4x me x, ka 5x.
5x-20=180
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
5x=180+20
Me tāpiri te 20 ki ngā taha e rua.
5x=200
Tāpirihia te 180 ki te 20, ka 200.
x=\frac{200}{5}
Whakawehea ngā taha e rua ki te 5.
x=40
Whakawehea te 200 ki te 5, kia riro ko 40.
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