Whakaoti mō x
x=-10
Graph
Tohaina
Kua tāruatia ki te papatopenga
12x-60-10x=-80
Tangohia te 10x mai i ngā taha e rua.
2x-60=-80
Pahekotia te 12x me -10x, ka 2x.
2x=-80+60
Me tāpiri te 60 ki ngā taha e rua.
2x=-20
Tāpirihia te -80 ki te 60, ka -20.
x=\frac{-20}{2}
Whakawehea ngā taha e rua ki te 2.
x=-10
Whakawehea te -20 ki te 2, kia riro ko -10.
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