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a fost răspuns

ex 3 va roggggggggggggggggggggggggg

Ex 3 Va Roggggggggggggggggggggggggg class=

Răspuns :

a+b=3m=300cm

a=b+28 inlocuim

b+28+b=300

2b=300-28

b=272:2

b=136cm=1.36m

a=136+28=164cm=1.64m