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Aflați x din:
A. X-(175-21)=1732
B. 437 -x+20=104


Răspuns :

A. X-(175-21)=1732<=>x-154=1732<=> x=1732+154=1886

B. 437-x+20=104<=>437-x=104-20=84<=> x=437-84=353