Question

diferenta a doua numere este 22,3 . determinati-le,stind ca suma lor este 28,56

Answer 1

a-b = 22,3
a+b = 28,56
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2a / = 50,86 => a = 50,86 : 2 => a = 25,43.

25,43 - b = 22,3 => -b = 22,3 - 25,43 => b = -22,3 + 25,43
=> b = 3,13.

Answer 2

a-b=22.3   ;   a=22.3+b
a+b =28.56

22.3+b  + b =28.56
2b =28.56-22.3
2b =6.26
b =3.13
a =22.3-b
a =22.3+3.13 =25.43
verif  ;  25.43+3.13 =28.56