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a+b=600
a+57=b+35
------------a=?
b=?
metoda grafica​


Răspuns :

Răspuns:

a+b=600

a+57=b+35

a=b+35-57

b+35-57+b=600

2b=600+57

35

2b=622=311

b=311

a=311+35-57=289

a=289