6.870+(n-499.800) = 7.436
n-499.800 = 7.436 - 6.870
n-499.800 = 566
n = 499.800 + 566
n = 500.366
ответ : 500.366
n-499800=566
n=500366
6.870+(n-499.800) = 7.436
n-499.800 = 7.436 - 6.870
n-499.800 = 566
n = 499.800 + 566
n = 500.366
ответ : 500.366