\(x-\frac{2}{3}-\frac{2}{15}-\frac{2}{35}-\frac{2}{63}=30\frac{1}{9}\)
\(x=31\)
\(30\frac{1}{9}\)= \(\frac{271}{9}\)
\(x-\frac{2}{3}-\frac{2}{15}-\frac{2}{35}-\frac{2}{63}=\frac{271}{9}\)
\(x=\frac{271}{9}-\left(\frac{2}{3}+\frac{2}{15}+\frac{2}{35}+\frac{2}{63}\right)\)
\(x=\frac{263}{9}\)
~ Chúc bạn học tốt ~
X - 2/3 - 2/15 - 2/35 - 2/63 = 30 1/9
X - 2/3 - 2/15 - 2/35 - 2/63 = 271/9
X= 271/9 + 2/63 + 2/35 + 2/15+ 2/3
X = 31
X - 2/3 - 2/15 - 2/35 - 2/63 = 30 1/9
X - 2/3 - 2/15 - 2/35 - 2/63 = 271/9
X= 271/9 + 2/63 + 2/35 + 2/15+ 2/3
X = 31