Решите уровнения////////

Question

Решите уровнения////////

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Answer 1

1.x+11/15=1
x=1-11/15
x=14/15
2.1-y=8/21
-y=-1+8/21
-y=-13/21
y=13/21
3.15/29-y=14/29
-y=-1/29
y=1/29