Whakaoti mō p
p=\frac{5}{8}=0.625
Tohaina
Kua tāruatia ki te papatopenga
5p+7=12-3p
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 4-p.
5p+7+3p=12
Me tāpiri te 3p ki ngā taha e rua.
8p+7=12
Pahekotia te 5p me 3p, ka 8p.
8p=12-7
Tangohia te 7 mai i ngā taha e rua.
8p=5
Tangohia te 7 i te 12, ka 5.
p=\frac{5}{8}
Whakawehea ngā taha e rua ki te 8.
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