Tìm x biết :
a ) \(\left|x-2015\right|=\frac{1}{2}\)
b ) \(\left|x-2015\right|+\left|x-2016\right|=2017\)
Tìm GTNN
P= 2017+ căn bậc x-2018
Q= 2x-3\5-3x ( x thuộc Z)
Tìm GTLN
B= x+2 \|x| ) x thuộc Z)
C= 2016* x -1 \ 2015*x+2016
a) 2x-1/11+2x-2/12+2x-3/13=2x+5/5+2x+6/4+2x+7/3
b) x-1/2016+x-2/2015+x-3/2014+x-4/2013+x-5/2012 -5=0
c) x+2017/2+x+2015/3+x+2013/4+x+2011/5+8=0
Tìm x;y biết rằng:|x-2015|+|x-2016|+|y-2017|+|y-2018|=0
Tìm x biết: a) (2x-3)2012+(y-\(\frac{2}{5}\))2014+|x+y-z|=0
b) 2015-|x-2015|=x
c) 5-|3-x|=2x+9
d) |x-999|+|1998-2x|=0
e) |x-1004|+|2008-2x|=0
Tìm x biết :
a) \(\dfrac{3x+2}{5x+7}=\dfrac{3x-1}{5x+1}\)
b) \(\dfrac{x+1}{2016}+\dfrac{x}{2017}=\dfrac{x+2}{2015}+\dfrac{x+3}{2014}\)
c) (2x - 1 )2 = ( 2x - 1 )2018
d) ( x - 1 )x + 2 = ( x - 1 )x + 4
e) ( 2x - 3 )2 = 144
Tìm x:
(x+4/2012)+(x+3/2013)=(x+2/2014)+(x+1/2015)
Tìm x, biết
\(\dfrac{x+2015}{5}+\dfrac{x+2016}{4}=\dfrac{x+2017}{3}+\dfrac{x+2018}{2}\)
Tìm x để biểu thức sau nhận giá trị dương;
x2+2016x