\(\frac{x-1}{59}+\frac{x-2}{58}+\frac{x-3}{57}=\frac{x-4}{56}+\frac{x-5}{55}+\frac{x-6}{54}\)
<=>\(\frac{x-1}{59}+\frac{x-2}{58}+\frac{x-3}{57}-\frac{x-4}{56}-\frac{x-5}{55}-\frac{x-6}{54}=0\)
<=>\(\frac{x-1}{59}-1+\frac{x-2}{58}-1+\frac{x-3}{57}-1-\frac{x-4}{56}+1-\frac{x-5}{55}+1-\frac{x-6}{54}+1=0\)
<=>\(\frac{x-60}{59}+\frac{x-60}{58}+\frac{x-60}{57}-\frac{x-60}{56}-\frac{x-60}{55}-\frac{x-60}{54}=0\)
<=>\(\left(x-60\right)\left(\frac{1}{59}+\frac{1}{58}+\frac{1}{57}-\frac{1}{56}-\frac{1}{55}-\frac{1}{54}\right)=0\)
Do \(\frac{1}{59}+\frac{1}{58}+\frac{1}{57}-\frac{1}{56}-\frac{1}{55}-\frac{1}{54}\ne0\)
=>x-60=0
<=>x=60
Vậy x=60
