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[(124+150-x):6]:31-2=0

Răspuns :

[tex][(124+150-x):6]:31=2[/tex]
[tex](124+150-x):6=32[/tex]
[tex]274-x=372[/tex]
[tex]x=274-372[/tex]
[tex]x=-98[/tex]
[(124+150-x):6]:31-2=0

[(274-x):6]:31-2=0

 (274/6-x/6)/31-2=0

274-x-2×6×31=0

274-372=x

x=-98