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Determina numarul natural x din egalitatea asta [( x· 2+3)·4:5+6]-1=9​


Repede!


Răspuns :

[(x•2+3)•4:5+6]-1=9
[(x•5)•4:11]-1=9
[(x•5)•2]=9-1
(X•5)•2=8
X•5=8•2
X•5= 16
5•16 = 80
80