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Aflati-l pe "a":
(324÷6+345÷5)×2+1237=43×a+135
Am nevoie urgent!!!
Multumesc anticipat!!!


Răspuns :

(54+69)•2+1237=43a+135 123•2+1237=43a+135 246+1237=43a+135 43a+135=1483 43a=1483-135 43a=1348 a=1348:43 a=31