Решите уравнение:-5х-11=-6х-12

7+|х+3|=49

|х+3|=49-7

|х+3|=42

х+3≥0....................х+3<0

х+3=42.................-(х+3)=42

х=42-3.................-х-3=42

х=39...................-х=42+3

............................-х=45

............................х=-45

Ответ: х=39, х=-45