Ecuatii

Rezolvati in Z urmatoarele ecuatii:
a) 3 + x = 6; x =
b) 3x + 7 = 10; x =
c) x : 5 = -3; x =
d) 5x + 2 = 4; x =
e) 4x - 2 = 3x + 7; x =
f) 4 = 5(x + 1) - 6; x =
g) -3x + 5 = -9x - 7; x =