Whakaoti mō x
x=\frac{100-17z-9y}{7}
Whakaoti mō y
y=\frac{100-17z-7x}{9}
Tohaina
Kua tāruatia ki te papatopenga
-7x-9y-17z=-100
Tangohia te 100 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
-7x-17z=-100+9y
Me tāpiri te 9y ki ngā taha e rua.
-7x=-100+9y+17z
Me tāpiri te 17z ki ngā taha e rua.
-7x=9y+17z-100
He hanga arowhānui tō te whārite.
\frac{-7x}{-7}=\frac{9y+17z-100}{-7}
Whakawehea ngā taha e rua ki te -7.
x=\frac{9y+17z-100}{-7}
Mā te whakawehe ki te -7 ka wetekia te whakareanga ki te -7.
x=\frac{100-17z-9y}{7}
Whakawehe -100+9y+17z ki te -7.
-7x-9y-17z=-100
Tangohia te 100 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
-9y-17z=-100+7x
Me tāpiri te 7x ki ngā taha e rua.
-9y=-100+7x+17z
Me tāpiri te 17z ki ngā taha e rua.
-9y=7x+17z-100
He hanga arowhānui tō te whārite.
\frac{-9y}{-9}=\frac{7x+17z-100}{-9}
Whakawehea ngā taha e rua ki te -9.
y=\frac{7x+17z-100}{-9}
Mā te whakawehe ki te -9 ka wetekia te whakareanga ki te -9.
y=\frac{100-17z-7x}{9}
Whakawehe -100+7x+17z ki te -9.
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