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2×{3×[4×(5×x+1)-3]-2}=2

Răspuns :

2×{3×[4×(5×X+1)-3]-2}=2=>3×[4×(5×X+1)-3]-2=1=>
=>3×[4×(5×X+1)-3]=3 =>4×(5×X+1)-3=1 =>
=>4×(5×X+1)=4 =>5×X+1=1 =>5×X=0 =>X=0