Whakaoti mō c
c = \frac{7}{4} = 1\frac{3}{4} = 1.75
Tohaina
Kua tāruatia ki te papatopenga
12c+5=2\left(2\times 6+1\right)
Me whakarea ngā taha e rua o te whārite ki te 12, arā, te tauraro pātahi he tino iti rawa te kitea o 12,6.
12c+5=2\left(12+1\right)
Whakareatia te 2 ki te 6, ka 12.
12c+5=2\times 13
Tāpirihia te 12 ki te 1, ka 13.
12c+5=26
Whakareatia te 2 ki te 13, ka 26.
12c=26-5
Tangohia te 5 mai i ngā taha e rua.
12c=21
Tangohia te 5 i te 26, ka 21.
c=\frac{21}{12}
Whakawehea ngā taha e rua ki te 12.
c=\frac{7}{4}
Whakahekea te hautanga \frac{21}{12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.
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