Whakaoti mō a
a=\frac{3b}{2}
Whakaoti mō b
b=\frac{2a}{3}
Tohaina
Kua tāruatia ki te papatopenga
7a-2b-5a=b
Tangohia te 5a mai i ngā taha e rua.
2a-2b=b
Pahekotia te 7a me -5a, ka 2a.
2a=b+2b
Me tāpiri te 2b ki ngā taha e rua.
2a=3b
Pahekotia te b me 2b, ka 3b.
\frac{2a}{2}=\frac{3b}{2}
Whakawehea ngā taha e rua ki te 2.
a=\frac{3b}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
7a-2b-b=5a
Tangohia te b mai i ngā taha e rua.
7a-3b=5a
Pahekotia te -2b me -b, ka -3b.
-3b=5a-7a
Tangohia te 7a mai i ngā taha e rua.
-3b=-2a
Pahekotia te 5a me -7a, ka -2a.
\frac{-3b}{-3}=-\frac{2a}{-3}
Whakawehea ngā taha e rua ki te -3.
b=-\frac{2a}{-3}
Mā te whakawehe ki te -3 ka wetekia te whakareanga ki te -3.
b=\frac{2a}{3}
Whakawehe -2a ki te -3.
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