Whakaoti mō x
x=30
Graph
Tohaina
Kua tāruatia ki te papatopenga
6x-20+x=190
Pahekotia te 3x me 3x, ka 6x.
7x-20=190
Pahekotia te 6x me x, ka 7x.
7x=190+20
Me tāpiri te 20 ki ngā taha e rua.
7x=210
Tāpirihia te 190 ki te 20, ka 210.
x=\frac{210}{7}
Whakawehea ngā taha e rua ki te 7.
x=30
Whakawehea te 210 ki te 7, kia riro ko 30.
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