Whakaoti mō S
S=4a+7
Whakaoti mō a
a=\frac{S-7}{4}
Tohaina
Kua tāruatia ki te papatopenga
S=a\left(-2\right)^{2}+7
Tangohia te 4 i te 2, ka -2.
S=a\times 4+7
Tātaihia te -2 mā te pū o 2, kia riro ko 4.
S=a\left(-2\right)^{2}+7
Tangohia te 4 i te 2, ka -2.
S=a\times 4+7
Tātaihia te -2 mā te pū o 2, kia riro ko 4.
a\times 4+7=S
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
a\times 4=S-7
Tangohia te 7 mai i ngā taha e rua.
4a=S-7
He hanga arowhānui tō te whārite.
\frac{4a}{4}=\frac{S-7}{4}
Whakawehea ngā taha e rua ki te 4.
a=\frac{S-7}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
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