Răspuns:
27+27 :3:3-2 5• x = 10 + 6:3
27+9:3-
ai scris bine exercițiu ?
33+81 :9:3-3 •y = 5 x 3 x 2
33+9:3-3•y=15×2
33+3-3•y=30
36-3•y=30
3•y=36-30
3•y=6
y=6:3
y=2
99-36:6:2+5x z = 10 × 10 + 6 × 6
99-6:2+5•z=100+36
99-3+5•z=136
96+5•z=136
5•z=136-96
5•z=40
z=40:5
z=8