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Whakaoti mō x
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

75\times 100+x\left(-100\right)=75x
Tē taea kia ōrite te tāupe x ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 75x, arā, te tauraro pātahi he tino iti rawa te kitea o x,75.
7500+x\left(-100\right)=75x
Whakareatia te 75 ki te 100, ka 7500.
7500+x\left(-100\right)-75x=0
Tangohia te 75x mai i ngā taha e rua.
7500-175x=0
Pahekotia te x\left(-100\right) me -75x, ka -175x.
-175x=-7500
Tangohia te 7500 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-7500}{-175}
Whakawehea ngā taha e rua ki te -175.
x=\frac{300}{7}
Whakahekea te hautanga \frac{-7500}{-175} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -25.