Whakaoti mō x
x=-\frac{3}{10}=-0.3
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x+4-15x=7
Tangohia te 15x mai i ngā taha e rua.
-10x+4=7
Pahekotia te 5x me -15x, ka -10x.
-10x=7-4
Tangohia te 4 mai i ngā taha e rua.
-10x=3
Tangohia te 4 i te 7, ka 3.
x=\frac{3}{-10}
Whakawehea ngā taha e rua ki te -10.
x=-\frac{3}{10}
Ka taea te hautanga \frac{3}{-10} te tuhi anō ko -\frac{3}{10} mā te tango i te tohu tōraro.
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