Question

giúp em với

Answer 1

Bài 5: 

a: \(\Leftrightarrow\left(\dfrac{x-1}{59}-1\right)+\left(\dfrac{x-2}{58}-1\right)+\left(\dfrac{x-3}{57}-1\right)=\left(\dfrac{x-4}{56}-1\right)+\left(\dfrac{x-5}{55}-1\right)+\left(\dfrac{x-6}{54}-1\right)\)

=>x-60=0

=>x=60

b: \(\Leftrightarrow\left(\dfrac{x+1}{15}+1\right)+\left(\dfrac{x+2}{14}+1\right)=\left(\dfrac{x+3}{13}+1\right)+\left(\dfrac{x+4}{12}+1\right)\)

=>x+16=0

=>x=-16