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Afla numarul necunoscut [(a-2)x3+26]:25=8

Răspuns :

[(a-2)x3+26]:25=8              

 [(a-2)x3+26]=8x25=200        

 (a-2)x3=200-26=174     

 (a-2)=174:3=58   

  a=58+2

  a=60

[(60-2)x3+26]:25=8