⑧ Реши уравнения с комментированием и сделай проверку: x + \frac{5}{36} = \frac{13}{36} y - \frac{16}{49} = \frac{27}{49} \frac{8}{21} + k = \frac{17}{21} \frac{48}{56} - t = \frac{39}{56}

1) \[x + \frac{5}{36} = \frac{13}{36}\] \[x = \frac{13}{36} - \frac{5}{36}\] \[x = \frac{8}{36} = \frac{2}{9}\] Проверка: \[\frac{2}{9} + \frac{5}{36} = \frac{8}{36} + \frac{5}{36} = \frac{13}{36}\] 2) \[y - \frac{16}{49} = \frac{27}{49}\] \[y = \frac{27}{49} + \frac{16}{49}\] \[y = \frac{43}{49}\] Проверка: \[\frac{43}{49} - \frac{16}{49} = \frac{27}{49}\] 3) \[\frac{8}{21} + k = \frac{17}{21}\] \[k = \frac{17}{21} - \frac{8}{21}\] \[k = \frac{9}{21} = \frac{3}{7}\] Проверка: \[\frac{8}{21} + \frac{3}{7} = \frac{8}{21} + \frac{9}{21} = \frac{17}{21}\] 4) \[\frac{48}{56} - t = \frac{39}{56}\] \[t = \frac{48}{56} - \frac{39}{56}\] \[t = \frac{9}{56}\] Проверка: \[\frac{48}{56} - \frac{9}{56} = \frac{39}{56}\]