Question

daca a+b=108si a-b=42,afla a si b

Answer 1

A+b=108
A-b=42
A=42+b
42+b+b=108
2b=108-42
2b=66
B=66/2
B=33
A=42+33
A=75
Verificare
75+33=108
75-33=42 adevărat

Answer 2

|-------------|(b)
|-------------|---|+42 (a) }}}}} 108 suma
1+1=2segmente egale
108-42=66 (2 segmente egale
66:2 =33 (b)
33+42=75(a)
sper ca te-am ajutàt! ! ! !