Whakaoti mō y
y=30000
Graph
Tohaina
Kua tāruatia ki te papatopenga
60000-2y=\left(30000-y\right)\times 100
Whakareatia ngā taha e rua o te whārite ki te 2.
60000-2y=3000000-100y
Whakamahia te āhuatanga tohatoha hei whakarea te 30000-y ki te 100.
60000-2y+100y=3000000
Me tāpiri te 100y ki ngā taha e rua.
60000+98y=3000000
Pahekotia te -2y me 100y, ka 98y.
98y=3000000-60000
Tangohia te 60000 mai i ngā taha e rua.
98y=2940000
Tangohia te 60000 i te 3000000, ka 2940000.
y=\frac{2940000}{98}
Whakawehea ngā taha e rua ki te 98.
y=30000
Whakawehea te 2940000 ki te 98, kia riro ko 30000.
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