Whakaoti mō x
x = -\frac{7}{4} = -1\frac{3}{4} = -1.75
Graph
Tohaina
Kua tāruatia ki te papatopenga
-27x=x+49
Pahekotia te 15x me -42x, ka -27x.
-27x-x=49
Tangohia te x mai i ngā taha e rua.
-28x=49
Pahekotia te -27x me -x, ka -28x.
x=\frac{49}{-28}
Whakawehea ngā taha e rua ki te -28.
x=-\frac{7}{4}
Whakahekea te hautanga \frac{49}{-28} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.
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