Whakaoti mō x
x=\frac{2}{3}\approx 0.666666667
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-12=4\left(-2x+2\right)-2\left(x+6\right)
Me whakarea ngā taha e rua o te whārite ki te 8, arā, te tauraro pātahi he tino iti rawa te kitea o 8,2,4.
2x-12=-8x+8-2\left(x+6\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te -2x+2.
2x-12=-8x+8-2x-12
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x+6.
2x-12=-10x+8-12
Pahekotia te -8x me -2x, ka -10x.
2x-12=-10x-4
Tangohia te 12 i te 8, ka -4.
2x-12+10x=-4
Me tāpiri te 10x ki ngā taha e rua.
12x-12=-4
Pahekotia te 2x me 10x, ka 12x.
12x=-4+12
Me tāpiri te 12 ki ngā taha e rua.
12x=8
Tāpirihia te -4 ki te 12, ka 8.
x=\frac{8}{12}
Whakawehea ngā taha e rua ki te 12.
x=\frac{2}{3}
Whakahekea te hautanga \frac{8}{12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.
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