103х-(44х + 18х) = 103х - 44х - 18х = 41х
326х + (17х - 14х) = 326х +17х - 14х = 329х
35а + 18 + 15а + 11 = 50а + 29
12у + у + 52 + 8у + 3 = 21у + 55
276m -(172m + 14m) = 276m - 172m - 14m = 90m
26z -(13z - 5z) + z = 26z - 13z + 5z + z = 19z
42x + 45 + 8x +45 = 50x + 90
204b +30b + 6b + 56 = 240b + 56