Whakaoti mō b
b=\frac{M-9}{81}
Whakaoti mō M
M=81b+9
Pātaitai
Algebra
M = ( 9 b + 1 ) \times 9
Tohaina
Kua tāruatia ki te papatopenga
M=81b+9
Whakamahia te āhuatanga tohatoha hei whakarea te 9b+1 ki te 9.
81b+9=M
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
81b=M-9
Tangohia te 9 mai i ngā taha e rua.
\frac{81b}{81}=\frac{M-9}{81}
Whakawehea ngā taha e rua ki te 81.
b=\frac{M-9}{81}
Mā te whakawehe ki te 81 ka wetekia te whakareanga ki te 81.
b=\frac{M}{81}-\frac{1}{9}
Whakawehe M-9 ki te 81.
M=81b+9
Whakamahia te āhuatanga tohatoha hei whakarea te 9b+1 ki te 9.
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