Tìm x, biết
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BTVN:
BTL: Tìm x, bt.
a) \(-3 - \left(2c - 2\right) = -14\)
\(\frac{M}{5} = 22\)
b) \(-7 - \frac{\left(-x + 4\right)}{13} = -21\)
\(\frac{8}{13}\)
c) \(\frac{3}{5} - \left(\frac{2}{3} - x\right) = \frac{3}{7}\)
d) \(\frac{29 - x}{21} + \frac{27 - x}{23} + \frac{25 - x}{25} + \frac{23 - x}{27} + \frac{21 - x}{29} = 0\)
BTVN:
BTL: Tìm x, bt.
a) \(-3 - \left(2c - 2\right) = -14\)
\(\frac{M}{5} = 22\)
b) \(-7 - \frac{\left(-x + 4\right)}{13} = -21\)
\(\frac{8}{13}\)
c) \(\frac{3}{5} - \left(\frac{2}{3} - x\right) = \frac{3}{7}\)
d) \(\frac{29 - x}{21} + \frac{27 - x}{23} + \frac{25 - x}{25} + \frac{23 - x}{27} + \frac{21 - x}{29} = 0\)