Whakaoti mō y
y=24
Graph
Tohaina
Kua tāruatia ki te papatopenga
3y+12=20y-396
Whakareatia ngā taha e rua o te whārite ki te 4.
3y+12-20y=-396
Tangohia te 20y mai i ngā taha e rua.
-17y+12=-396
Pahekotia te 3y me -20y, ka -17y.
-17y=-396-12
Tangohia te 12 mai i ngā taha e rua.
-17y=-408
Tangohia te 12 i te -396, ka -408.
y=\frac{-408}{-17}
Whakawehea ngā taha e rua ki te -17.
y=24
Whakawehea te -408 ki te -17, kia riro ko 24.
Ngā Tauira
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