Question

tìm X :

X + 9/7 = 4/5

X - 5/2 = 12/7

29/3 - X = 5/6

Answer 1

 x + \(\frac{9}{7}\)= \(\frac{4}{5}\)

=> x        = \(\frac{4}{5}\)- \(\frac{9}{7}\)

=> x        = \(\frac{-17}{35}\)

 x - \(\frac{5}{2}\)= \(\frac{12}{7}\)

=> x          = \(\frac{12}{7}+\frac{5}{2}\)

=> x          = \(\frac{59}{14}\)

 \(\frac{29}{3}\)- x = \(\frac{5}{6}\)

=> \(\frac{29}{3}\)- \(\frac{5}{6}\)= x

=> \(\frac{53}{6}\)= x

=> x = \(\frac{53}{6}\)

Answer 2

+)\(x+\frac{9}{7}=\frac{4}{5}\)

<=>\(x=-\frac{17}{35}\)

+)\(x=\frac{59}{14}\)

+)\(x=\frac{53}{6}\)