Whakaoti mō u
u=80
Tohaina
Kua tāruatia ki te papatopenga
5\times 9u-80=4\times 11u
Me whakarea ngā taha e rua o te whārite ki te 40, arā, te tauraro pātahi he tino iti rawa te kitea o 8,10.
45u-80=4\times 11u
Whakareatia te 5 ki te 9, ka 45.
45u-80=44u
Whakareatia te 4 ki te 11, ka 44.
45u-80-44u=0
Tangohia te 44u mai i ngā taha e rua.
u-80=0
Pahekotia te 45u me -44u, ka u.
u=80
Me tāpiri te 80 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
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