решите уравнения Х:456=389 и 23.650:Х=50

1) x:456 = 389 x = 456•389 x = 177.384 -------------------- 177.384:456 = 389      389=389  2) 23.650:x = 50 x = 23.650:50 x = 473 ------------------------- 23.650:473 = 50         50=50