Răspunsuri

2014-01-31T17:17:01+02:00
A-b=22.3
a+b=28.56

Adunam expresiile=>
a-b+a+b=22.3+28.56=>
=> 2a=50.86
=> a= 50.86:2
=> a=25.43

b=28.56-25.43
b=3.13

Deci numerele sunt 25.43 si 3,13
4 4 4
2014-01-31T17:18:18+02:00
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+3.13
a=25.43

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