Whakaoti mō x
x=30
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{2}{5}x=10+2
Me tāpiri te 2 ki ngā taha e rua.
\frac{2}{5}x=12
Tāpirihia te 10 ki te 2, ka 12.
x=12\times \frac{5}{2}
Me whakarea ngā taha e rua ki te \frac{5}{2}, te tau utu o \frac{2}{5}.
x=\frac{12\times 5}{2}
Tuhia te 12\times \frac{5}{2} hei hautanga kotahi.
x=\frac{60}{2}
Whakareatia te 12 ki te 5, ka 60.
x=30
Whakawehea te 60 ki te 2, kia riro ko 30.
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