Whakaoti mō a
a=-\frac{4b-105}{b+4}
b\neq -4
Whakaoti mō b
b=-\frac{4a-105}{a+4}
a\neq -4
Tohaina
Kua tāruatia ki te papatopenga
ab+4a-9=96-4b
Tangohia te 4b mai i ngā taha e rua.
ab+4a=96-4b+9
Me tāpiri te 9 ki ngā taha e rua.
ab+4a=105-4b
Tāpirihia te 96 ki te 9, ka 105.
\left(b+4\right)a=105-4b
Pahekotia ngā kīanga tau katoa e whai ana i te a.
\frac{\left(b+4\right)a}{b+4}=\frac{105-4b}{b+4}
Whakawehea ngā taha e rua ki te b+4.
a=\frac{105-4b}{b+4}
Mā te whakawehe ki te b+4 ka wetekia te whakareanga ki te b+4.
ab+4b-9=96-4a
Tangohia te 4a mai i ngā taha e rua.
ab+4b=96-4a+9
Me tāpiri te 9 ki ngā taha e rua.
ab+4b=105-4a
Tāpirihia te 96 ki te 9, ka 105.
\left(a+4\right)b=105-4a
Pahekotia ngā kīanga tau katoa e whai ana i te b.
\frac{\left(a+4\right)b}{a+4}=\frac{105-4a}{a+4}
Whakawehea ngā taha e rua ki te a+4.
b=\frac{105-4a}{a+4}
Mā te whakawehe ki te a+4 ka wetekia te whakareanga ki te a+4.
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