Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Whakaoti mō y
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

-2x+3y=22-2
Tangohia te 2 mai i ngā taha e rua.
-2x+3y=20
Tangohia te 2 i te 22, ka 20.
-2x=20-3y
Tangohia te 3y mai i ngā taha e rua.
\frac{-2x}{-2}=\frac{20-3y}{-2}
Whakawehea ngā taha e rua ki te -2.
x=\frac{20-3y}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
x=\frac{3y}{2}-10
Whakawehe 20-3y ki te -2.
-2x+3y=22-2
Tangohia te 2 mai i ngā taha e rua.
-2x+3y=20
Tangohia te 2 i te 22, ka 20.
3y=20+2x
Me tāpiri te 2x ki ngā taha e rua.
3y=2x+20
He hanga arowhānui tō te whārite.
\frac{3y}{3}=\frac{2x+20}{3}
Whakawehea ngā taha e rua ki te 3.
y=\frac{2x+20}{3}
Mā te whakawehe ki te 3 ka wetekia te whakareanga ki te 3.