Whakaoti mō a
a=68
Tohaina
Kua tāruatia ki te papatopenga
104+120+a+\frac{56}{7}=300
Whakareatia te 8 ki te 13, ka 104. Whakareatia te 20 ki te 6, ka 120.
224+a+\frac{56}{7}=300
Tāpirihia te 104 ki te 120, ka 224.
224+a+8=300
Whakawehea te 56 ki te 7, kia riro ko 8.
232+a=300
Tāpirihia te 224 ki te 8, ka 232.
a=300-232
Tangohia te 232 mai i ngā taha e rua.
a=68
Tangohia te 232 i te 300, ka 68.
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