\(\frac{5}{8}+\frac{x}{-1}=\frac{1}{3}\)
\(=>\frac{x}{-1}=\frac{-7}{24}\)
\(=>-x=\frac{-7}{24}\)
\(=>x=\frac{7}{24}\)
\(\frac{4}{11}+\frac{2}{-x}=\frac{1}{10}\)
\(=>\frac{2}{-x}=\frac{-29}{110}\)
\(=>29x=220\)
\(=>x=\frac{220}{29}\)
\(\frac{5}{8}+\frac{x}{-1}=\frac{1}{3}\)
\(\frac{x}{-1}=\frac{1}{3}-\frac{5}{8}\)
\(\frac{x}{-1}=-\frac{7}{24}\)
\(x=-\frac{7}{24}\cdot-1\)
\(x=\frac{7}{24}\)
câu tiếp theo làm tương tự
\(\frac{5}{8}+\frac{x}{-1}=\frac{1}{3}\)
\(\Rightarrow\frac{x}{-1}=\frac{1}{3}-\frac{5}{8}=\frac{-7}{24}\)
\(\Rightarrow24x=\left(-7\right).\left(-1\right)=7\)
\(\Rightarrow x=7:24=\frac{7}{24}\)
\(\frac{4}{11}+\frac{2}{-x}=\frac{1}{10}\)
\(\Rightarrow\frac{-2}{x}=\frac{1}{10}-\frac{4}{11}=\frac{-29}{110}\)
\(\Rightarrow\left(-2\right).110=-29x\)
\(\Rightarrow-220=-29x\)
\(\Leftrightarrow x=\left(-220\right):\left(-29\right)=\frac{220}{29}\)
\(\Rightarrow x=-29\)
a) \(\frac{5}{8}+\frac{x}{-1}=\frac{1}{3}\rightarrow\frac{5}{8}-x=\frac{1}{3}\rightarrow x=\frac{5}{8}-\frac{1}{3}=\frac{15}{24}-\frac{8}{24}=\frac{7}{24}\)
b)\(\frac{4}{11}+\frac{2}{-x}=\frac{1}{10}\rightarrow\frac{2}{-x}=\frac{1}{10}-\frac{4}{11}=\frac{11}{110}-\frac{40}{110}=\frac{29}{110}\rightarrow x=-\frac{220}{29}\)
\(\frac{5}{8}+\frac{x}{-1}=\frac{1}{3}\)
\(\frac{x}{-1}=\frac{1}{3}-\frac{5}{8}\)
\(\frac{x}{-1}=\frac{8-3}{24}\)
\(\frac{x}{-1}=\frac{5}{24}\)
\(\Rightarrow x.24=-1.5\)
\(\Rightarrow x.24=-5\)
\(\Rightarrow x=-5:24=-\frac{5}{24}\)
Vậy \(x=-\frac{5}{24}\)
\(\frac{4}{11}+\frac{2}{-x}=\frac{1}{10}\)
\(\frac{2}{-x}=\frac{1}{10}-\frac{4}{11}\)
\(\frac{2}{-x}=\frac{11-40}{110}\)
\(\frac{2}{-x}=-\frac{29}{110}\)
\(\Rightarrow2.110=\left(-29\right).\left(-x\right)\)
\(\Rightarrow220=29x\)
\(\Rightarrow x=220:29=\frac{220}{29}\)
Vậy \(x=\frac{220}{29}\)
Ủng hộ mk nha,chúc bn học tốt !!!
bài 1
\(\frac{5}{8}+\frac{x}{-1}=\frac{1}{3}\)
=>\(\frac{5}{8}+\left(-x\right)=\frac{1}{3}\)
=>\(-x=\frac{1}{3}-\frac{5}{8}\)
=>\(-x=-\frac{7}{24}\)
=>\(x=\frac{7}{24}\)
câu 2:
\(\frac{4}{11}+\frac{2}{-x}=\frac{1}{10}\)
=>\(\frac{2}{-x}=\frac{1}{10}-\frac{4}{11}\)
=>\(-\frac{2}{x}=-\frac{29}{110}\)
=>\(\frac{2}{x}=\frac{29}{110}\)
=>\(\frac{220}{110x}=\frac{29x}{110x}\)
=>220=29x
=>x=\(\frac{220}{29}\)