Whakaoti mō x
x=-4
Graph
Tohaina
Kua tāruatia ki te papatopenga
-x+12=45-3x+10x-1
Pahekotia te 2x me -3x, ka -x.
-x+12=45+7x-1
Pahekotia te -3x me 10x, ka 7x.
-x+12=44+7x
Tangohia te 1 i te 45, ka 44.
-x+12-7x=44
Tangohia te 7x mai i ngā taha e rua.
-8x+12=44
Pahekotia te -x me -7x, ka -8x.
-8x=44-12
Tangohia te 12 mai i ngā taha e rua.
-8x=32
Tangohia te 12 i te 44, ka 32.
x=\frac{32}{-8}
Whakawehea ngā taha e rua ki te -8.
x=-4
Whakawehea te 32 ki te -8, kia riro ko -4.
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