9797 + (5392 - x) = 103975392 - x = 10397 - 97975392 - x = 600-x = 600 - 5392-x = -4792x = 4792
5372 - (x + 4127) = 9735372 - x - 4127 = 973
8374 - (5973 - x) = 43928374 - 5973 + x = 4392x = 4392 - 8374 + 5973x = 1991
9797 + (5392 - x) = 10397
5392 - x = 10397 - 9797
5392 - x = 600
-x = 600 - 5392
-x = -4792
x = 4792
5372 - (x + 4127) = 973
x = 973 - 5372 + 4127x = -2725372 - x - 4127 = 973
x = 272
8374 - (5973 - x) = 4392
8374 - 5973 + x = 4392
x = 4392 - 8374 + 5973
x = 1991