Вправи 401 - 500 » 497

1) (x + 4537) + 5297 = 11 342 x + 4537 = 11 342 – 5297 x + 4537 = 6045 x = 6045 – 4537 x = 1508________ 1508 + 4537 = 6045 6045 = 6045 2) (x + 4792) – 539 = 6397 x + 4792 = 6397 + 539 x + 4792 = 6936 x = 6936 – 4792 x = 2144_________ 2144 + 4792 = 6936 6936 = 6936 3) (x – 8397) – 5372 = 1792 x – 8397 = 1792 + 5372 x – 8397 = 7164 x = 7164 + 8397 x = 15 561 15561 – 8397 = 7164 7164 = 7164 4) 9797 + (5392 – x) = 10 397 5392 – x = 10 397 – 9797 5392 – x = 600 x = 5392 – 600 x = 4792 5392 – 4792 = 600 600 = 600 5) 5372 - (x + 4127) = 973 x + 4127 = 5372 – 973 x + 4127 = 4399 x = 4399 – 4127 x = 272_________ 272 + 4127 = 4399 4399 = 4399 6) 8374 - (5973 – x) = 4392 5973 – x = 8374 – 4392 5973 – x = 3982 x = 5973 – 3982 x = 1991________ 5973 – 1991 = 3982 3982 = 3982