rezolvati ecuatiile:
c)35+16+a=200-48
d)b-(21+2x16)=308:4


Răspuns :

c)35+16+a=152
   51+a=152
   a=152-51
  a=101

d)b-(21+2·16)=77
  b-(21+32)=77
  b-53=77
  b=77+53
  b=130