N 42
risp C
N 43
A+B = 12
a) A=7
B= 12-7 = 5
b) A-B = 6 —> A= 6+B
6+B+B = 12 —> 2B=12-6 —> B=3
A = 9
c) A=1/2B
1/2B+B=12 —> 3/2B=12 —> B = 8
A = 4
@vj grazie
Prego😊
Home
Profilo
Menu