Whakaoti mō x
x=200-9y
Whakaoti mō y
y=\frac{200-x}{9}
Graph
Pātaitai
Algebra
x + ( 9 y + 15 ) = 215
Tohaina
Kua tāruatia ki te papatopenga
x+15=215-9y
Tangohia te 9y mai i ngā taha e rua.
x=215-9y-15
Tangohia te 15 mai i ngā taha e rua.
x=200-9y
Tangohia te 15 i te 215, ka 200.
9y+15=215-x
Tangohia te x mai i ngā taha e rua.
9y=215-x-15
Tangohia te 15 mai i ngā taha e rua.
9y=200-x
Tangohia te 15 i te 215, ka 200.
\frac{9y}{9}=\frac{200-x}{9}
Whakawehea ngā taha e rua ki te 9.
y=\frac{200-x}{9}
Mā te whakawehe ki te 9 ka wetekia te whakareanga ki te 9.
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