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ty_i3u_ck
2 năm trước
Bài 1 Tìm x, biết a) $\frac{21}{13}$ . x = $\frac{-7}{16}$ b) $\frac{3}{4}$ . x - $\frac{1}{2}$ = $\frac{3}{4}$ c) |x-$\frac{2}{5}$|- $\frac{1}{3}$ = $\frac{1}{3}$ d) |$\frac{3}{7}$| - $\frac{1}{7}$: x = $\frac{3}{14}$ e) $\frac{1}{3}$ + $\frac{1}{2}$x = -4 g) ( $\frac{1}{4}$x - 1 ) - ($\frac{5}{6}$x + 2) - (1 - $\frac{5}{8}$x) = 3
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