Whakaoti mō z
z=\frac{1}{4}=0.25
Tohaina
Kua tāruatia ki te papatopenga
2z+3+2z=4
Me tāpiri te 2z ki ngā taha e rua.
4z+3=4
Pahekotia te 2z me 2z, ka 4z.
4z=4-3
Tangohia te 3 mai i ngā taha e rua.
4z=1
Tangohia te 3 i te 4, ka 1.
z=\frac{1}{4}
Whakawehea ngā taha e rua ki te 4.
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