Tìm x biết:
\(\begin{array}{l}
a)\frac{3}{4}x = 1\\
b)\frac{4}{7}x = \frac{9}{8} - 0,125
\end{array}\)
\(\begin{array}{l}
a)\frac{3}{4}x = 1\\
x = 1:\frac{3}{4} = 1.\frac{4}{3}\\
x = \frac{4}{3}\\
b)\frac{4}{7}x = \frac{9}{8} - 0,125\\
\frac{4}{7}x = \frac{9}{8} - \frac{1}{8} = 1\\
x = 1:\frac{4}{7} = 1.\frac{7}{4}\\
x = \frac{7}{4}
\end{array}\)
-- Mod Toán 6
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