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\(x+100=200-300+100\)
\(x+100=-100+100\)
\(x+100=0\)
\(x=0-100\)
\(x=-100\)
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Số số hạng: (100-1):1+1=100(số)
tổng: (100+1)x100:2=5050
Aj k mk mk k lại
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100^x-1=0
100^X =0+1
100^x =1
100^x =100^0
x =0
K MÌNH NHA , MÌNH K BẠN ZÙI
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x + 100 = 200 - 100 - 100
x + 100 = 0
x = 0 - 100
x = -100
Vậy x = - 100
![](https://rs.olm.vn/images/avt/0.png?1311)
100 + x2 = 181
x2 = 181 - 100
x2 = 81
x2 = 92 = (-9)2
=> \(x\in\left\{9;-9\right\}\)
\(100+x^2=181\)
\(x^2=181-100\)
\(x^2=81\)
=> x = 9 hay x = -9
ai k mk mk k lại
![](https://rs.olm.vn/images/avt/0.png?1311)
x + 100 = 50 x 2 + 100 - 100 + 200 - 800 + 1 000
x + 100 = 100 + 100 - 100 + 200 - 800 + 1 000
x + 100 = 100 + 200 - 800 + 1 000
x + 100 = ( -500) + 1 000
x + 100 = 500
x = 500 - 100
x = 400.
x+100=50.2+100-100+200-800+1000
x+100=100+100-100+200-800+1000
x+100=200-100+200-800+1000
x+100=100+200-800+1000
x+100=300-800+1000
x+100=-500+1000
x+100=500
x=500-100
x=400
100+100=200
100 + 100 = 200