Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x-12+6x=3\left(2-x\right)+6
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x-4.
9x-12=3\left(2-x\right)+6
Pahekotia te 3x me 6x, ka 9x.
9x-12=6-3x+6
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 2-x.
9x-12=12-3x
Tāpirihia te 6 ki te 6, ka 12.
9x-12+3x=12
Me tāpiri te 3x ki ngā taha e rua.
12x-12=12
Pahekotia te 9x me 3x, ka 12x.
12x=12+12
Me tāpiri te 12 ki ngā taha e rua.
12x=24
Tāpirihia te 12 ki te 12, ka 24.
x=\frac{24}{12}
Whakawehea ngā taha e rua ki te 12.
x=2
Whakawehea te 24 ki te 12, kia riro ko 2.
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