Whakaoti mō x
x=\frac{9}{22}\approx 0.409090909
Graph
Tohaina
Kua tāruatia ki te papatopenga
18x+9=40x
Me whakarea ngā taha e rua o te whārite ki te 90, arā, te tauraro pātahi he tino iti rawa te kitea o 5,10,9.
18x+9-40x=0
Tangohia te 40x mai i ngā taha e rua.
-22x+9=0
Pahekotia te 18x me -40x, ka -22x.
-22x=-9
Tangohia te 9 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-9}{-22}
Whakawehea ngā taha e rua ki te -22.
x=\frac{9}{22}
Ka taea te hautanga \frac{-9}{-22} te whakamāmā ki te \frac{9}{22} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.
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