7450-x:5=765x8
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x:7450-x:5=765x8
x:7450-x:5=6120
x:(7450-5)=6120
x:7445=6120
x=45563400
7450 - x : 5 = 765 x 8
7450-x:5 =6120
x:5=7450-6120
x:5=1420
x=1420x5
x=7100
7540 - x : 5 = 6120
x : 5 = 7540 - 6120
x : 5 = 1420
x = 1420 x 5
x = 7100
(x+1)+(x+2)+(x+3)+....+(x+100) = 7450
=> 100x+ (100+1).100:2=7450
<=> 100x+ 5050=7450
<=> 100x= 2400
<=> x=24
Giải:
(x+1)+(x+2)+(x+3)+...+(x+100)=7450
100x+(1+100).100:2 =7450
100x+5050 =7450
100x =7450-5050
100x =2400
x =2400:100
x =24
Chúc bạn học tốt!
\(\Rightarrow\)(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
\(\left(x+1\right)+\left(x+2\right)+...+\left(x+100\right)=7450\)
\(100x+\left(1+2+3+...+100\right)=7450\)
\(100x+\frac{100.101}{2}=7450\)
\(100x+5050=7450\)
\(100x=2400\)
\(\Rightarrow x=24\)
\(\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+......+\left(x+100\right)=7450\)
\(=>100x+\left(1+2+3+4+5+.....+100\right)=7450\)
\(=>100x+\frac{100.101}{2}=7450\)
\(=>100x=2400\)
\(=>x=24\)
Ủng hộ nha
Thanks
7450-x:5=765x8
7450-x:5=6120
x:5=7450-6120
x:5=1330
x=1330x5
x=6650
Vậy x=6650
7450-(x:5)=765x8
7450-(x:5)=6120
x:5 = 7450 - 6120
x:5 = 1330
x = 1330:5
x = 266