1) ( а + 5 4 6 ) - 3 2 8 = 5 4 6 - 3 2 8 + а = 2 1 8 + a
2) ( с + 9 6 1 ) - 5 9 2 = 9 6 1 - 5 9 2 + с = 3 6 9 + c
3) ( 1 5 1 + b ) - 1 0 9 = 1 5 1 - 1 0 9 + b = 4 2 + b
4) 2 7 2 - ( 1 2 5 + y ) = 2 7 2 - 1 2 5 + y = 1 4 7 + y
5) 9 2 5 - ( p + 7 3 5 ) = 9 2 5 - 7 3 5 + p = 1 9 0 + p
6) 7 0 7 - ( n + 5 3 4 ) = 7 0 7 - 5 3 4 + n = 1 7 3 + n