Whakaoti mō x
x=-7
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x+130-8x=151
Tangohia te 8x mai i ngā taha e rua.
-3x+130=151
Pahekotia te 5x me -8x, ka -3x.
-3x=151-130
Tangohia te 130 mai i ngā taha e rua.
-3x=21
Tangohia te 130 i te 151, ka 21.
x=\frac{21}{-3}
Whakawehea ngā taha e rua ki te -3.
x=-7
Whakawehea te 21 ki te -3, kia riro ko -7.
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