[{"id": "7bwex6", "text": "", "content": [{"type": "content/math", "position": 0, "content": "2{x}+6=2{x}+3", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "d47xu9", "text": "", "content": [{"type": "content/math", "position": 0, "content": "|{x}|=3", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "svb7qx", "text": "", "content": [{"type": "content/math", "position": 0, "content": "2{x}-1=2{x}-1", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "skef0j", "text": "", "content": [{"type": "content/math", "position": 0, "content": "5{y}=6{y}", "is_multiline": true}], "text_styles": [], "block_styles": []}] \text{Выберите уравнение, которое не имеет корней:}