Whakaoti mō x
x=-\frac{10}{13}\approx -0.769230769
Graph
Tohaina
Kua tāruatia ki te papatopenga
-2.9x=x+3
Pahekotia te 4x me -6.9x, ka -2.9x.
-2.9x-x=3
Tangohia te x mai i ngā taha e rua.
-3.9x=3
Pahekotia te -2.9x me -x, ka -3.9x.
x=\frac{3}{-3.9}
Whakawehea ngā taha e rua ki te -3.9.
x=\frac{30}{-39}
Whakarohaina te \frac{3}{-3.9} mā te whakarea i te taurunga me te tauraro ki te 10.
x=-\frac{10}{13}
Whakahekea te hautanga \frac{30}{-39} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.
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