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Myhaela111
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Determinati solutia ecuatiei (x+1)+(x+2)+...+(x+100)=15050 Va rog urgent !!! Multumesc anticipat !! Dau coronita !!!

Răspuns :

Getatotan
suma  de 100 termeni  
100x  + ( 1+ 2 +... + 100) = 15050 
100x  + (1 + 100 ) · 100 :2 = 15050 
100x  + 5050 = 15050 
100x = 15050 - 5050 
100x = 10000
x =100