Răspunsuri

2014-03-25T14:46:19+02:00
A:b=4
a=4b

a+b=350
4b+b=350
5b=350
b=350:5
b=70

a=4b
a=4x70
a=280

Verificare:280+70=350
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2014-03-25T14:50:16+02:00
|---|---|---|---| A
|---|B 5p=350 350:5=70 o parte deciB
4x70=280A