Tìm số nguyên x biết:

Bài 5. Tìm số nguyên x biết:                                                 

a) 15 – ( 4 – x) = 6 ;                                              b) - 30 + ( 25 – x) = - 1 ;

c) x – ( 12 – 25) = -8 ;                                          d) ( x – 29 ) – ( 17 – 38 ) = - 9

e) ( x + 5 ) + ( x – 9 ) = x + 2 ;                             g) ( 27 – x ) + ( 15 + x ) = x – 24 .