Whakaoti mō x
x = -\frac{15}{4} = -3\frac{3}{4} = -3.75
Graph
Tohaina
Kua tāruatia ki te papatopenga
1+8x-16x=31
Tangohia te 16x mai i ngā taha e rua.
1-8x=31
Pahekotia te 8x me -16x, ka -8x.
-8x=31-1
Tangohia te 1 mai i ngā taha e rua.
-8x=30
Tangohia te 1 i te 31, ka 30.
x=\frac{30}{-8}
Whakawehea ngā taha e rua ki te -8.
x=-\frac{15}{4}
Whakahekea te hautanga \frac{30}{-8} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
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