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| (2x + 5)/9 + (5x + 7)/6 = -2 | (7x + 1)/5 + (11x - 10)/7 = -15 |
| (4x + 10)/12 - (10x - 7)/2 = -10 | (1x · 7)/1 + (12x + 12)/4 = 17 |
| (5x - 10)/1 - (9x - 5)/1 = 29 | (4x - 1)/3 · (8x - 11)/4 = -20 |
| (2x + 7)/2 : (10x · 11)/11 = -12 | (10x - 5)/11 + (5x · 8)/3 = 5 |
| (11x + 6)/4 : (2x + 8)/6 = 21 | (11x + 9)/10 + (8x - 12)/7 = 2 |
| (6x · 4)/5 : (4x + 10)/11 = -12 | (11x + 4)/9 : (6x - 12)/11 = 0 |
| (11x - 1)/12 = (1x + 11)/8 | (5x + 3)/7 = (11x + 7)/2 |
| (12x · 1)/4 = (12x - 3)/5 | (1x - 8)/11 = (7x · 12)/6 |
| (2x - 1)/9 = (8x + 4)/7 | (9x + 6)/5 = (8x + 11)/4 |
| (6x · 7)/7 - (5x + 8)/9 + (6x + 2)/3 = -12 | (5x + 8)/3 · (8x + 7)/5 + (1x - 6)/12 = -15 |
| (8x + 7)/3 + (2x - 3)/6 - (1x + 7)/11 = 12 | (12x - 8)/3 + (6x - 10)/7 · (1x - 3)/10 = -11 |