Whakaoti mō x
x=-16
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x+7-8x=55
Tangohia te 8x mai i ngā taha e rua.
-3x+7=55
Pahekotia te 5x me -8x, ka -3x.
-3x=55-7
Tangohia te 7 mai i ngā taha e rua.
-3x=48
Tangohia te 7 i te 55, ka 48.
x=\frac{48}{-3}
Whakawehea ngā taha e rua ki te -3.
x=-16
Whakawehea te 48 ki te -3, kia riro ko -16.
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