Whakaoti mō x
x=-4
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+30=2-6x
Me whakarea ngā taha e rua o te whārite ki te 6, arā, te tauraro pātahi he tino iti rawa te kitea o 6,3.
x+30+6x=2
Me tāpiri te 6x ki ngā taha e rua.
7x+30=2
Pahekotia te x me 6x, ka 7x.
7x=2-30
Tangohia te 30 mai i ngā taha e rua.
7x=-28
Tangohia te 30 i te 2, ka -28.
x=\frac{-28}{7}
Whakawehea ngā taha e rua ki te 7.
x=-4
Whakawehea te -28 ki te 7, kia riro ko -4.
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