Whakaoti mō x
x=8
Graph
Tohaina
Kua tāruatia ki te papatopenga
6x+8+12=3x+20+2x+8
Pahekotia te 2x me 4x, ka 6x.
6x+20=3x+20+2x+8
Tāpirihia te 8 ki te 12, ka 20.
6x+20=5x+20+8
Pahekotia te 3x me 2x, ka 5x.
6x+20=5x+28
Tāpirihia te 20 ki te 8, ka 28.
6x+20-5x=28
Tangohia te 5x mai i ngā taha e rua.
x+20=28
Pahekotia te 6x me -5x, ka x.
x=28-20
Tangohia te 20 mai i ngā taha e rua.
x=8
Tangohia te 20 i te 28, ka 8.
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