Whakaoti mō x
x = -\frac{23}{3} = -7\frac{2}{3} \approx -7.666666667
Graph
Tohaina
Kua tāruatia ki te papatopenga
4-3x-7=20
Hei kimi i te tauaro o 3x+7, kimihia te tauaro o ia taurangi.
-3-3x=20
Tangohia te 7 i te 4, ka -3.
-3x=20+3
Me tāpiri te 3 ki ngā taha e rua.
-3x=23
Tāpirihia te 20 ki te 3, ka 23.
x=\frac{23}{-3}
Whakawehea ngā taha e rua ki te -3.
x=-\frac{23}{3}
Ka taea te hautanga \frac{23}{-3} te tuhi anō ko -\frac{23}{3} mā te tango i te tohu tōraro.
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