Whakaoti mō x
x=-\frac{7}{9}\approx -0.777777778
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-5x-\left(-7\right)-7-5x=7
Hei kimi i te tauaro o 5x-7, kimihia te tauaro o ia taurangi.
x-5x+7-7-5x=7
Ko te tauaro o -7 ko 7.
-4x+7-7-5x=7
Pahekotia te x me -5x, ka -4x.
-4x-5x=7
Tangohia te 7 i te 7, ka 0.
-9x=7
Pahekotia te -4x me -5x, ka -9x.
x=\frac{7}{-9}
Whakawehea ngā taha e rua ki te -9.
x=-\frac{7}{9}
Ka taea te hautanga \frac{7}{-9} te tuhi anō ko -\frac{7}{9} mā te tango i te tohu tōraro.
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