x 1/11 - 2x-5/15 = 3x-47/17 - 4x-59/19

Lời giải:

\(\begin{array}{l}\frac{{x + 1}}{{11}} - \frac{{2x - 5}}{{15}} = \frac{{3x - 47}}{{17}} - \frac{{4x - 59}}{{19}}\\\frac{x}{{11}} + \frac{1}{{11}} - \frac{2}{{15}}x + \frac{5}{{15}} = \frac{3}{{17}}x - \frac{{47}}{{17}} - \frac{{4x}}{{19}} + \frac{{59}}{{19}}\\\frac{{ - 1}}{{165}}x + \frac{{14}}{{33}} = \frac{{ - 11}}{{323}}x + \frac{{110}}{{323}}\\\frac{{ - 7}}{{165}}x + \frac{{11}}{{323}}x = \frac{{110}}{{323}} - \frac{{14}}{{33}}\\x = 10\end{array}\)

Vậy x = 10