giúp mink vs mink cần gấp nha
\( a)\\ \dfrac{{3x + 2}}{5} - \dfrac{{4x - 3}}{7} = 4 + \dfrac{{x - 2}}{{35}}\\ \Leftrightarrow 7\left( {3x + 2} \right) - 5\left( {4x - 3} \right) = 140 + x - 2\\ \Leftrightarrow 21x + 14 - 20x + 15 = 140 + x - 2\\ \Leftrightarrow x + 29 = 138 + x\\ \Leftrightarrow 0x = 109\left( {vn} \right)\\ b)\\ \dfrac{{x + 6}}{2} + \dfrac{{2\left( {x + 17} \right)}}{2} + \dfrac{{5\left( {x - 10} \right)}}{6} = 2x + 6\\ \Leftrightarrow 3\left( {x + 6} \right) + 3\left( {2x + 34} \right) + 5x - 50 = 12x - 36\\ \Leftrightarrow 3x + 18 + 6x + 102 + 5x - 50 = 12x - 36\\ \Leftrightarrow 14x + 70 = 12x - 36\\ \Leftrightarrow 2x = - 106\\ \Leftrightarrow x = - 53 \)
