Whakaoti mō x
x = -\frac{19}{10} = -1\frac{9}{10} = -1.9
Graph
Tohaina
Kua tāruatia ki te papatopenga
10x-40\left(x+1\right)=17
Whakareatia te 8 ki te 5, ka 40.
10x-40x-40=17
Whakamahia te āhuatanga tohatoha hei whakarea te -40 ki te x+1.
-30x-40=17
Pahekotia te 10x me -40x, ka -30x.
-30x=17+40
Me tāpiri te 40 ki ngā taha e rua.
-30x=57
Tāpirihia te 17 ki te 40, ka 57.
x=\frac{57}{-30}
Whakawehea ngā taha e rua ki te -30.
x=-\frac{19}{10}
Whakahekea te hautanga \frac{57}{-30} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.
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