Tìm x:
Giải thích
\[\frac{{x - 10}}{{30}} + \frac{{x - 14}}{{43}} + \frac{{x - 5}}{{95}} + \frac{{x - 148}}{8} = 0\]
\[\left( {\frac{{x - 10}}{{30}} - 3} \right) + \left( {\frac{{x - 14}}{{43}} - 2} \right) + \left( {\frac{{x - 5}}{{95}} - 1} \right) + \left( {\frac{{x - 148}}{8} + 6} \right) = 0\]
\[\frac{{x - 100}}{{30}} + \frac{{x - 100}}{{43}} + \frac{{x - 100}}{{95}} + \frac{{x - 100}}{8} = 0\]
\[\left( {x - 100} \right)\left( {\frac{1}{{30}} + \frac{1}{{43}} + \frac{1}{{95}} + \frac{1}{8}} \right) = 0\]
Mà \[\frac{1}{{30}} + \frac{1}{{43}} + \frac{1}{{95}} + \frac{1}{8} \ne 0\]
Nên x ‒ 100 = 0
x = 100.