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\(\frac{22}{9}-x.\frac{1}{3}=\frac{5}{9}\)
\(\Rightarrow\frac{22}{9}-\frac{x}{3}=\frac{5}{9}\)
\(\Rightarrow\frac{x}{3}=\frac{22}{9}-\frac{5}{9}\)
\(\Rightarrow\frac{x}{3}=\frac{17}{9}\)
\(\Rightarrow\frac{3.x}{9}=\frac{17}{9}\Rightarrow3.x=17\Rightarrow x=\frac{17}{3}\)
Chúc bn hc giỏi!
\(\frac{12}{35}:\frac{35}{25}=\frac{12}{35}.\frac{25}{35}=\frac{12.25}{35.35}=\frac{12.5.5}{7.5.7.5}=\frac{12}{49}\)
\(\frac{9}{22}.\frac{33}{18}=\frac{9.33}{22.18}=\frac{9.3.11}{11.2.9.2}=\frac{3}{4}\)
= \(x^8.\frac{1}{10}.\frac{2}{9}.\frac{3}{8}.\frac{4}{7}.\frac{5}{6}.\frac{6}{5}.\frac{7}{4}.\frac{8}{3}.\frac{9}{2}\)
= \(x^8.\frac{1}{10}.\left(\frac{2}{9}.\frac{9}{2}\right).\left(\frac{3}{8}.\frac{8}{3}\right).\left(\frac{4}{7}.\frac{7}{4}\right).\left(\frac{5}{6}.\frac{6}{5}\right)\)
= \(x^8.\frac{1}{10}.1.1.1.1\)
= \(x^8.\frac{1}{10}\)
Mk ko pik co dung ko nua
a)
\(x.\frac{7}{9}=\frac{2}{3}+2\frac{1}{2}\)
\(x.\frac{7}{9}=\frac{19}{6}\)
\(x=\frac{19}{6}:\frac{7}{9}\)
\(x=\frac{57}{14}\)
b) \(\frac{5}{7}+x:\frac{9}{4}=\frac{4}{3}\)
\(x:\frac{9}{4}=\frac{4}{3}-\frac{5}{7}\)
\(x:\frac{9}{4}=\frac{13}{21}\)
\(x=\frac{13}{21}.\frac{9}{4}\)
\(x=\frac{39}{28}\)
2 x A = 1 - \(\dfrac{1}{2027}\)
\(A=\dfrac{1013}{2027}\)
\(\frac{22}{9}x-\frac{1}{3}=\frac{5}{9}\)
\(\Rightarrow\frac{22}{9}x=\frac{5}{9}+\frac{1}{3}\)
\(\Rightarrow\frac{22}{9}x=\frac{8}{9}\)
\(\Rightarrow x=\frac{8}{9}:\frac{22}{9}=\frac{8}{9}x\frac{9}{22}\)
\(\Rightarrow x=\frac{4}{11}\)
\(\frac{22}{9}x-\frac{1}{3}=\frac{5}{9}\)
\(\frac{22}{9}x=\frac{5}{9}+\frac{1}{3}\)
\(\frac{22}{9}x=\frac{8}{9}\)
\(x=\frac{8}{9}:\frac{22}{9}=\frac{4}{11}\)
vậy \(x=\frac{4}{11}\)