\begin{cases} \text{3х+у=3 } \\ \text{3х+4у=-2} \end{cases} [{"id": "07fa3o", "text": "", "content": [{"type": "content/math", "position": 0, "content": "x=1 \\frac{2}{3}; \ny=1 \\frac{5}{9}", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "eedb8k", "text": "", "content": [{"type": "content/math", "position": 0, "content": "x=-1 \\frac{2}{3}; \ny=1 \\frac{5}{9}", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "un0a0v", "text": "", "content": [{"type": "content/math", "position": 0, "content": "x=1 \\frac{2}{3}; \ny=-1 \\frac{5}{9}", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "f70pgn", "text": "", "content": [{"type": "content/math", "position": 0, "content": "x=1,5556; \ny=1,6667", "is_multiline": true}], "text_styles": [], "block_styles": []}]