Question

Tìm x

a/ (X + \(\frac{5}{3}\)) x \(\frac{9}{13}\)= \(\frac{2}{3}\)

b/ 43770 : X = 560 - 434

c/ x : 3\(\frac{1}{3}=2\frac{2}{5}+\frac{7}{10}\)

Answer 1

a) \(\left(x+\frac{5}{3}\right)\cdot\frac{9}{13}=\frac{2}{3}\)

\(x+\frac{5}{3}=\frac{2}{3}:\frac{9}{13}\)

\(x+\frac{5}{13}=\frac{26}{27}\)

\(x=\frac{5}{13}-\frac{26}{27}\)

\(x=\frac{-203}{351}\)

b) \(43770:x=560-434\)

\(43770:x=126\)

\(x=43770:126\)

\(x=\frac{7295}{21}\)

c) \(x:3\frac{1}{3}=2\frac{2}{5}+\frac{7}{10}\)

\(x:\frac{10}{3}=\frac{12}{5}+\frac{7}{10}\)

\(x:\frac{10}{3}=\frac{31}{10}\)

\(x=\frac{31}{10}\cdot\frac{10}{3}\)

\(x=\frac{31}{3}\)

Answer 2

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