5. Реши уравнения: a) x + 2\(\frac{5}{11}\) = 4\(\frac{11}{11}\) б) 6\(\frac{3}{5}\) - y = 3\(\frac{5}{7}\)

Решение:

a) x + 2\(\frac{5}{11}\) = 4\(\frac{11}{11}\)

x = 4\(\frac{11}{11}\) - 2\(\frac{5}{11}\)

x = (4 - 2) + (\(\frac{11}{11}\) - \(\frac{5}{11}\))

x = 2 + \(\frac{6}{11}\)

x = 2\(\frac{6}{11}\)

б) 6\(\frac{3}{5}\) - y = 3\(\frac{5}{7}\)

y = 6\(\frac{3}{5}\) - 3\(\frac{5}{7}\)

y = (6 - 3) + (\(\frac{3}{5}\) - \(\frac{5}{7}\))

y = 3 + (\(\frac{21}{35}\) - \(\frac{25}{35}\))

y = 3 - \(\frac{4}{35}\)

y = 2\(\frac{35}{35}\) - \(\frac{4}{35}\)

y = 2\(\frac{31}{35}\)