Whakaoti mō x
x=-12
Graph
Tohaina
Kua tāruatia ki te papatopenga
-20-1.5x-3.6x=41.2
Tangohia te 3.6x mai i ngā taha e rua.
-20-5.1x=41.2
Pahekotia te -1.5x me -3.6x, ka -5.1x.
-5.1x=41.2+20
Me tāpiri te 20 ki ngā taha e rua.
-5.1x=61.2
Tāpirihia te 41.2 ki te 20, ka 61.2.
x=\frac{61.2}{-5.1}
Whakawehea ngā taha e rua ki te -5.1.
x=\frac{612}{-51}
Whakarohaina te \frac{61.2}{-5.1} mā te whakarea i te taurunga me te tauraro ki te 10.
x=-12
Whakawehea te 612 ki te -51, kia riro ko -12.
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