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(1.2x-3.5)x3+4.25=5.27

Răspuns :

(1,2x-3,5)*3+4,25=5,27
(1,2x-3,5)*3=5,27-4,25
(1,2x-3,5)=1,02:3
1,2x=0,34+3,5
x=3,84:1,2
x=3,2