(x + x + ... + x) + (1 + 2 + 3 + ... + 100) = 6050
X x 100 + 5050 = 6050
X x 100 = 1000
X = 10
(x + 1) + (x + 2) + ... + (x + 100) = 6050
=> x + x + x + ... + x + 1 + 2 + 3 + ... + 100 = 6050
=> 100x + 5050 = 6050
=> 100x = 1000
=> x = 10
=(x+x+...+x+x)+(1+2+3+4+...+99+100)=6050
= x.100 + 5050 =6050
x.100 =6050-5050
x.100 =1000
x =1000:100
x =10
CHI TIẾT LẮM LN Ó :))
=(x+x+x+...+x)+(1+2+3+...+100)
=Xx100+5050=6050
Vậy x=10
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