Whakaoti mō x
x=-\frac{9}{14}\approx -0.642857143
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-2\left(15x+2\right)=14
Ko te tauaro o -2 ko 2.
2x-30x-4=14
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te 15x+2.
-28x-4=14
Pahekotia te 2x me -30x, ka -28x.
-28x=14+4
Me tāpiri te 4 ki ngā taha e rua.
-28x=18
Tāpirihia te 14 ki te 4, ka 18.
x=\frac{18}{-28}
Whakawehea ngā taha e rua ki te -28.
x=-\frac{9}{14}
Whakahekea te hautanga \frac{18}{-28} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
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