Whakaoti mō x
x=-6
Graph
Tohaina
Kua tāruatia ki te papatopenga
-4x+2-20=6
Pahekotia te x me -5x, ka -4x.
-4x-18=6
Tangohia te 20 i te 2, ka -18.
-4x=6+18
Me tāpiri te 18 ki ngā taha e rua.
-4x=24
Tāpirihia te 6 ki te 18, ka 24.
x=\frac{24}{-4}
Whakawehea ngā taha e rua ki te -4.
x=-6
Whakawehea te 24 ki te -4, kia riro ko -6.
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