7. Rezolvaţi ecuaţiile:
a) x + 31 = 125
456
d) 2 (x-7)= 44
b) 2x - 7=11
e) 96: x = 16
c) 78 - x = 45
f) x: 8 = 11
d) 61 + 5x =
g) (2x+10): 4 = 21