Whakaoti mō x
x=-3
Graph
Tohaina
Kua tāruatia ki te papatopenga
-4x-8+2\left(3x-5\right)=12x-5\left(1+x\right)+2
Whakamahia te āhuatanga tohatoha hei whakarea te -4 ki te x+2.
-4x-8+6x-10=12x-5\left(1+x\right)+2
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 3x-5.
2x-8-10=12x-5\left(1+x\right)+2
Pahekotia te -4x me 6x, ka 2x.
2x-18=12x-5\left(1+x\right)+2
Tangohia te 10 i te -8, ka -18.
2x-18=12x-5-5x+2
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te 1+x.
2x-18=7x-5+2
Pahekotia te 12x me -5x, ka 7x.
2x-18=7x-3
Tāpirihia te -5 ki te 2, ka -3.
2x-18-7x=-3
Tangohia te 7x mai i ngā taha e rua.
-5x-18=-3
Pahekotia te 2x me -7x, ka -5x.
-5x=-3+18
Me tāpiri te 18 ki ngā taha e rua.
-5x=15
Tāpirihia te -3 ki te 18, ka 15.
x=\frac{15}{-5}
Whakawehea ngā taha e rua ki te -5.
x=-3
Whakawehea te 15 ki te -5, kia riro ko -3.
Ngā Tauira
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