Tìm x,y
a, \(\left|3x-1\right|+\left(y-2\right)^2=0\)
b \(\frac{1}{5.6}+\frac{1}{6.7}+....+\frac{1}{x.\left(x+1\right)}=\frac{19}{100}\)
c. \(\frac{1}{1.3}+\frac{1}{3.5}+....+\frac{1}{x.\left(x+2\right)}=\frac{49}{99}\)
d. \(\left(2x+1\right).\left(y-2\right)=6\)
e \(^{x^2-3xy+3y-x=1}\)