Question

x-(1/1.3)-(1/3.5)-(1/5.7)-...-(1/97.99)=5/6

Giúp mk vs mk đg gấp lm ạ

#Ngọc_Hà_Cute

 

Answer 1

x-1/2*(1/1-1/3)-(1/3-1/5)-...-1/97-1/99=5/6

x-1/2*(1-1/99)=5/6

x-1/2*98/99=5/6

x-49/59=5/6

x=5/6+49/59=263/198