Whakaoti mō x
x=6
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{14}{42}=\frac{x}{x+12}
Whakawehea ngā taha e rua ki te 42.
\frac{1}{3}=\frac{x}{x+12}
Whakahekea te hautanga \frac{14}{42} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 14.
x+12=3x
Tē taea kia ōrite te tāupe x ki -12 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 3\left(x+12\right), arā, te tauraro pātahi he tino iti rawa te kitea o 3,x+12.
x+12-3x=0
Tangohia te 3x mai i ngā taha e rua.
-2x+12=0
Pahekotia te x me -3x, ka -2x.
-2x=-12
Tangohia te 12 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-12}{-2}
Whakawehea ngā taha e rua ki te -2.
x=6
Whakawehea te -12 ki te -2, kia riro ko 6.
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