\(\Rightarrow\)(x+x+x+...+x)+(1+2+..+100)=7450
\(\Rightarrow\)101x+(100+1)*100/2=7450
\(\Rightarrow\)101x+101*50=7450
\(\Rightarrow\)101x+5050=7450
\(\Rightarrow\)101x=7450-5050
\(\Rightarrow\)101x=2400
\(\Rightarrow\)x=2400/101
mik ra k chia hết
nhưng kb vs mik nha ,mik là A.R.M.Y
=> x+x+1+x+2+......+x+100 = 7450
=> 100x + 5050 = 7450
=> 100x = 7450 - 5050 = 2400
=> x = 2400 : 100 = 24
Vậy x = 24
Tk mk nha
x+(x+1)+(x+2)+.........+(x+100) = 7450
(x+x+x+............+x) + (1+2+.........+100) = 7450
100x + 5050 = 7450
100x = 7450 - 5050
100x = 2400
x = 2400 : 100
x = 24
Vậy x = 24
\(x+\left(x+1\right)\left(x+2\right)+...+\left(x+100\right)=7450\)
\(\Leftrightarrow\left(x+x+x+...+x\right)+\left(1+2+...+100\right)=7450\)
\(\Leftrightarrow100x+5050=7450\)
\(\Leftrightarrow100x=7450-5050=2400\)
\(\Leftrightarrow x=2400:100=24\)