Whakaoti mō x
x = \frac{27}{10} = 2\frac{7}{10} = 2.7
Graph
Tohaina
Kua tāruatia ki te papatopenga
30x-12=20x+15
Me whakarea ngā taha e rua o te whārite ki te 60, arā, te tauraro pātahi he tino iti rawa te kitea o 2,5,3,4.
30x-12-20x=15
Tangohia te 20x mai i ngā taha e rua.
10x-12=15
Pahekotia te 30x me -20x, ka 10x.
10x=15+12
Me tāpiri te 12 ki ngā taha e rua.
10x=27
Tāpirihia te 15 ki te 12, ka 27.
x=\frac{27}{10}
Whakawehea ngā taha e rua ki te 10.
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