\frac { 11 } { 21 } x - ( 15 x - 2 ) = 4 ( x - 3
Whakaoti mō x
x=\frac{147}{194}\approx 0.757731959
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{11}{21}x-15x-\left(-2\right)=4\left(x-3\right)
Hei kimi i te tauaro o 15x-2, kimihia te tauaro o ia taurangi.
\frac{11}{21}x-15x+2=4\left(x-3\right)
Ko te tauaro o -2 ko 2.
-\frac{304}{21}x+2=4\left(x-3\right)
Pahekotia te \frac{11}{21}x me -15x, ka -\frac{304}{21}x.
-\frac{304}{21}x+2=4x-12
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x-3.
-\frac{304}{21}x+2-4x=-12
Tangohia te 4x mai i ngā taha e rua.
-\frac{388}{21}x+2=-12
Pahekotia te -\frac{304}{21}x me -4x, ka -\frac{388}{21}x.
-\frac{388}{21}x=-12-2
Tangohia te 2 mai i ngā taha e rua.
-\frac{388}{21}x=-14
Tangohia te 2 i te -12, ka -14.
x=-14\left(-\frac{21}{388}\right)
Me whakarea ngā taha e rua ki te -\frac{21}{388}, te tau utu o -\frac{388}{21}.
x=\frac{-14\left(-21\right)}{388}
Tuhia te -14\left(-\frac{21}{388}\right) hei hautanga kotahi.
x=\frac{294}{388}
Whakareatia te -14 ki te -21, ka 294.
x=\frac{147}{194}
Whakahekea te hautanga \frac{294}{388} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
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