Tim x biet : x+2x+3x+...=2016x=2017*2018
BD
Những câu hỏi liên quan
tim x biet
x4 + 2017x2 + 2016x + 2017=0
tim x , biet :
1 ) 2017 - \ x - 2017 \ = x
2) -1/2 . ( 3x - 1 ) + 3/4 . ( 3-2x) = -3 . ( x/2 - 1 ) - ( 4/5) mu -1
a)tim a,b,c thuoc Z biet:
Ia-bI+Ib-cI+Ic-aI=2017^2018
b)Tim x:y thuoc N* biet :
3x-1 chia het cho y va 3y-1 chia het cho x
NHANH LEN NHE CAC BAN !!!!!!!!!!!!!!!!!!!!!
tim x ,biet
/x-2017/ + /x-2018/ =1
các bạn giúp mìh nhen...mình đang cần gấp
tim x biet : \(\sqrt{3x^2+4}\)+ \(\sqrt{2016x^6+1}\)= 3-4x^2
tim x
1/x+2015+1/x+2017+1/x-2018=1/3x+2015
\(2016x^{2017}+2017y^{2018}=2019\) tính x,y thỏa mãn
tim x,y,z thuoc Z biet:
\(|x-2017|+|y+2018|+|2019-3z|nhohonhoacbang0\)
|3x-2018| + |x-2017| = |2x -1|
|x-1| + |x-3| +|x-5| +|x-7| = 8
|x-2018| + |x-2017| + |x-2018| = 2
MOi nguoi giup minh voi 4gio minh can roi
\(\left|3x-2018\right|+\left|x-2017\right|=\left|2x-1\right|\)
\(\Rightarrow\orbr{\begin{cases}3x-2018+x-2017=2x-1\\-\left(3x-2018\right)+\left[-\left(x-2017\right)\right]=2x-1\end{cases}}\)
\(\Rightarrow\orbr{\begin{cases}4x-4035=2x-1\\\left(-3x-x\right)+\left(2018+2017\right)=2x-1\end{cases}}\)
Làm tiếp
TH2:
\(\left|3x-2018\right|+\left|x-2017\right|=\left|2x-1\right|\)
\(\Rightarrow\orbr{\begin{cases}3x-2018+x-2017=-2x+1\\-\left(3x-2018\right)+\left[-\left(x-2017\right)\right]=-2x+1\end{cases}}\)
\(\Rightarrow\orbr{\begin{cases}4x-4035=-2x+1\\\left(-3x-x\right)+\left(2018+2017\right)=-2x+1\end{cases}}\)
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