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1. \((x-3376+1380) \cdot 3=111\,111\) .

Решение.

\(x-3376+1380=\) [ \(111\,111-3\) | \(111\,111:3\) | \(111\,111\cdot3\) | \(111\,111+3\) ];

\(x-3376+1380=\) [ ];

\(x-3376=\) [ \(37\,037+1380\) | \(37\,037:1380\) | \(37\,037-1380\) | \(37\,037\cdot1380\) ];

\(x-3376=\) [ ];

\(x=3376\) [ \(+\) | \(-\) | \(\cdot\) | \(:\) ][ ];

\(x=\) [ ].

2. \(4032:(y+15)-111=1.\)

Решение.

\(4032:(y+15)=\) [ \(111+1\) | \(111-1\) | \(111\cdot1\) | \(111:1\) ];

\(4032:(y+15)=\) [ ];

\(y+15=4032\) [ \(+\) | \(-\) | \(\cdot\) | \(:\) ][ ];

\(y+15=\) [ ];

\(y=\) [ ].

Ответ: 1) [ ]; 2) [ ].