Răspuns :
2 × a = 12
a = 12 : 2
a = 6
v : 12 : 6 = 2
12 : 2 = 6
2 × 6 = 12
a × 3 = 21
a = 21 : 3
a = 7
v : 21 : 3 = 7
21 : 7 = 3
7 × 3 = 21
24 : a = 3
a = 24 : 3
a = 8
v : 3 × 8 = 24
a : 2 = 8
a = 8 × 2
a = 16
v = 8 × 2 = 16
Salutare!:)
2×a=12
a=12:2
a=6
v: 2×6=12✅
a×3=21
a=21:3
a=7
v: 7×3=21✅
24:a=3
a=24:3
a=8
v: 24:8=3✅
a:2=8
a=8×2
a=16
v: 16:2=8✅