Question

Qual o valor de X na equação: (x+1)+(x+2)+...+(x+n)+...+(x+100)=7450

Answer 1

Ola Camila

100x + (1 + 2 + 3 + ... + 99 + 100) = 7450

(1 + 2 + 3 + ... + 99 + 100) = 100*101/2 = 5050

100x + 5050 = 7450

100x = 7450 - 5050 = 2400

x = 2400/100 = 24