541 + (218 - x) = 735
=> 218 - x = 194
=> x = 24
5(x+35) = 515
x + 35 = 103
x = 68
96 -3(x+1) = 42
=> 3(x+1) = 54
x + 1 = 18
x = 17
12x - 33 = 33 . 32
12x - 33 = 243
12x = 276
x = 23
541 + (218 - x) = 735
(218 - x) = 735 - 541 = 194
x = 218 - 194
x = 24