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(X+1)+(x+2)+(x+3)+...+(x+99)=51

Răspuns :

99x +(1+2+...+98+99)=51
99x + 49*100+50=51
99x +4900+50=51
99x = 51-50-4900
99x = 1-4900
99x = -4899
x=-4899/99