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afla valoarea lui x din:(3•x-5):4+(275-2•)30:5=53

Răspuns :

(3•x-5):4+(275-2)•30 =265
(3•x-5):4+(275-2)=8.83
(3•x-5):4+275=10.83
(3•x-5):4=0.03
3•x-5=0.15
3•x=5.15
x=1.71