3.93 Найдите корень уравнения: a) $$45x = 315$$ б) $$y \cdot 116 = 1508$$ в) $$z : 24 = 27$$

a) $$45x = 315$$
$$x = \frac{315}{45} = 7$$

б) $$y \cdot 116 = 1508$$
$$y = \frac{1508}{116} = 13$$

в) $$z : 24 = 27$$
$$z = 27 \cdot 24 = 648$$