Whakaoti mō x
x=100
Graph
Tohaina
Kua tāruatia ki te papatopenga
180+0.9x-x=170
Tangohia te x mai i ngā taha e rua.
180-0.1x=170
Pahekotia te 0.9x me -x, ka -0.1x.
-0.1x=170-180
Tangohia te 180 mai i ngā taha e rua.
-0.1x=-10
Tangohia te 180 i te 170, ka -10.
x=\frac{-10}{-0.1}
Whakawehea ngā taha e rua ki te -0.1.
x=\frac{-100}{-1}
Whakarohaina te \frac{-10}{-0.1} mā te whakarea i te taurunga me te tauraro ki te 10.
x=100
Ka taea te hautanga \frac{-100}{-1} te whakamāmā ki te 100 mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.
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