Whakaoti mō x
x=-6
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.9x+2.1-0.3x=-1.5
Tangohia te 0.3x mai i ngā taha e rua.
0.6x+2.1=-1.5
Pahekotia te 0.9x me -0.3x, ka 0.6x.
0.6x=-1.5-2.1
Tangohia te 2.1 mai i ngā taha e rua.
0.6x=-3.6
Tangohia te 2.1 i te -1.5, ka -3.6.
x=\frac{-3.6}{0.6}
Whakawehea ngā taha e rua ki te 0.6.
x=\frac{-36}{6}
Whakarohaina te \frac{-3.6}{0.6} mā te whakarea i te taurunga me te tauraro ki te 10.
x=-6
Whakawehea te -36 ki te 6, kia riro ko -6.
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