Question

2. tìm x

a. \(-5\dfrac{4}{7}\): x =26

b. x:\(2\dfrac{3}{5}\)=\(1\dfrac{3}{4}\)

c. x+\(\dfrac{1}{2}\)=\(\dfrac{-3}{5}\)

d. x-\(\dfrac{3}{4}\)= 6.\(\dfrac{3}{8}\)

e. \(\dfrac{7}{8}\):x=5-\(\dfrac{1}{3}\)

f. x:\(2\dfrac{2}{3}\)=\(4\dfrac{1}{3}\)

g. \(\dfrac{2}{5}\)+x=\(\dfrac{4}{10}\)

Answer 1

a. \(\dfrac{-39}{7}:x=26\)

x = \(\dfrac{-39}{7}:26\)

x = \(\dfrac{-3}{14}\)

b. \(x:\dfrac{13}{5}=\dfrac{7}{4}\)

x = \(\dfrac{7}{4}.\dfrac{13}{5}\)

x = \(\dfrac{91}{20}\)

c. x = \(\dfrac{-3}{5}-\dfrac{1}{2}\)

x = \(\dfrac{-11}{10}\)

d. \(x-\dfrac{3}{4}=\dfrac{9}{4}\)

x = \(\dfrac{9}{4}+\dfrac{3}{4}\)

x = 3

e. \(\dfrac{7}{8}:x=\dfrac{14}{3}\)

x = \(\dfrac{7}{8}:\dfrac{14}{3}\)

x = \(\dfrac{3}{16}\)

f. \(x:\dfrac{8}{3}=\dfrac{13}{3}\)

x = \(\dfrac{13}{3}.\dfrac{8}{3}\)

x = \(\dfrac{104}{9}\)

g. x = \(\dfrac{4}{10}-\dfrac{2}{5}\)

x = 0

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