Whakaoti mō x
x=-\frac{1}{2}=-0.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
15-7-\left(-5x\right)=2x+5-3x
Hei kimi i te tauaro o 7-5x, kimihia te tauaro o ia taurangi.
15-7+5x=2x+5-3x
Ko te tauaro o -5x ko 5x.
8+5x=2x+5-3x
Tangohia te 7 i te 15, ka 8.
8+5x=-x+5
Pahekotia te 2x me -3x, ka -x.
8+5x+x=5
Me tāpiri te x ki ngā taha e rua.
8+6x=5
Pahekotia te 5x me x, ka 6x.
6x=5-8
Tangohia te 8 mai i ngā taha e rua.
6x=-3
Tangohia te 8 i te 5, ka -3.
x=\frac{-3}{6}
Whakawehea ngā taha e rua ki te 6.
x=-\frac{1}{2}
Whakahekea te hautanga \frac{-3}{6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.
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