Whakaoti mō x
x = \frac{21}{2} = 10\frac{1}{2} = 10.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{2}{3}x=12-5
Tangohia te 5 mai i ngā taha e rua.
\frac{2}{3}x=7
Tangohia te 5 i te 12, ka 7.
x=7\times \frac{3}{2}
Me whakarea ngā taha e rua ki te \frac{3}{2}, te tau utu o \frac{2}{3}.
x=\frac{7\times 3}{2}
Tuhia te 7\times \frac{3}{2} hei hautanga kotahi.
x=\frac{21}{2}
Whakareatia te 7 ki te 3, ka 21.
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