Whakaoti mō x
x=9
Graph
Tohaina
Kua tāruatia ki te papatopenga
2\times 2x+3=6x-15
Me whakarea ngā taha e rua o te whārite ki te 6, arā, te tauraro pātahi he tino iti rawa te kitea o 3,2.
4x+3=6x-15
Whakareatia te 2 ki te 2, ka 4.
4x+3-6x=-15
Tangohia te 6x mai i ngā taha e rua.
-2x+3=-15
Pahekotia te 4x me -6x, ka -2x.
-2x=-15-3
Tangohia te 3 mai i ngā taha e rua.
-2x=-18
Tangohia te 3 i te -15, ka -18.
x=\frac{-18}{-2}
Whakawehea ngā taha e rua ki te -2.
x=9
Whakawehea te -18 ki te -2, kia riro ko 9.
Ngā Tauira
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