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a fost răspuns

3000-{123×4-[(x÷3-271)-3×12]+125×12}=1243

Răspuns :

-{492-[(x:3-271)-36]+1500}=1243-3000
-{492-[(x:3-271)-36]+1500}=-1757 (-1)
492-[(x:3-271)-36]=1757-1500
-[(x:3-271)-36]=257-492
-[(x:3-271)-36]=-235 (-1)
(x:3)-271=235+36
x:3=271+271
x=542x3
x=1626




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