Whakaoti mō x
x = \frac{19}{7} = 2\frac{5}{7} \approx 2.714285714
Graph
Tohaina
Kua tāruatia ki te papatopenga
6x+4\left(x-1\right)-3\left(x+1\right)=12
Me whakarea ngā taha e rua o te whārite ki te 12, arā, te tauraro pātahi he tino iti rawa te kitea o 2,3,4.
6x+4x-4-3\left(x+1\right)=12
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x-1.
10x-4-3\left(x+1\right)=12
Pahekotia te 6x me 4x, ka 10x.
10x-4-3x-3=12
Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te x+1.
7x-4-3=12
Pahekotia te 10x me -3x, ka 7x.
7x-7=12
Tangohia te 3 i te -4, ka -7.
7x=12+7
Me tāpiri te 7 ki ngā taha e rua.
7x=19
Tāpirihia te 12 ki te 7, ka 19.
x=\frac{19}{7}
Whakawehea ngā taha e rua ki te 7.
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