Whakaoti mō x
x=-6
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-2=2\left(x+2\right)
Tē taea kia ōrite te tāupe x ki -2 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te 2\left(x+2\right).
x-2=2x+4
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x+2.
x-2-2x=4
Tangohia te 2x mai i ngā taha e rua.
-x-2=4
Pahekotia te x me -2x, ka -x.
-x=4+2
Me tāpiri te 2 ki ngā taha e rua.
-x=6
Tāpirihia te 4 ki te 2, ka 6.
x=-6
Me whakarea ngā taha e rua ki te -1.
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