5/12-7/9y=10 5/12-3y

10 5 - это 10целых и 5/12
Правильно ли я решил?
5/12-7/9y=10 5/12-3y
45y-84=125-36y
45y+36y=125+84
81y=209
y=209/81
y=2.5
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