Whakaoti mō x
x=\frac{1}{6}\approx 0.166666667
Graph
Tohaina
Kua tāruatia ki te papatopenga
42x+4-24x=7
Tangohia te 24x mai i ngā taha e rua.
18x+4=7
Pahekotia te 42x me -24x, ka 18x.
18x=7-4
Tangohia te 4 mai i ngā taha e rua.
18x=3
Tangohia te 4 i te 7, ka 3.
x=\frac{3}{18}
Whakawehea ngā taha e rua ki te 18.
x=\frac{1}{6}
Whakahekea te hautanga \frac{3}{18} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.
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