Ta có:
| x + 3/5 | - | x - 7/3 | = 0
=> | x + 3/5 |=
| x - 7/3 |
=>x+3/5=x-7/3 hoặc x+3/5 = -(x-7/3)
=>x-x=-7/3-3/5 hoặc x+3/5 =-x+7/3
=>0=-7/3-3/5 hoặc x+x=7/3-3/5
=>(vô lí) hoặc 2x=24/15=8/5
=>x=8/5.1/2
=>x=4/5.
Vậy....
Tìm X biết : X+3/2008-X+3/2008-X+3/2010-X+3/2009
HELP ME AI NHANH MK TICK CHO NHA MAI MK PHAI NOP RUI GIÚP MK NHE THANK YOU
Tìm x ạ
b) \(\left|\dfrac{3}{4}x-\dfrac{3}{4}\right|-\dfrac{3}{4}=\left|\dfrac{-3}{4}\right|\)
c) \(\left|x+\dfrac{3}{5}\right|-\left|x-\dfrac{7}{3}\right|=0\)
Tìm x
a, \(\left(2-x\right)\times\left(\dfrac{4}{5}-x\right)< 0\)
b, \(\left(x-\dfrac{3}{2}\right)\times\left(2\times x-1\right)>0\)
c, \(\left(x-\dfrac{4}{7}\right)\div\left(x+\dfrac{1}{2}\right)>0\)
d, \(\left(2\times x-5\right)\div\left(x+1\dfrac{3}{4}\right)< 0\)
Giúp mk với
Tìm \(x\in Q\), biết rằng :
a) \(\dfrac{11}{12}-\left(\dfrac{2}{5}+x\right)=\dfrac{2}{3}\)
b) \(2x\left(x-\dfrac{1}{7}\right)=0\)
c) \(\dfrac{3}{4}+\dfrac{1}{4}:x=\dfrac{2}{5}\)
1) | x+4\5 | + 7\5 = 3\5
2) | x + 2 |= x-3
3) 5- | x - 2\3| - 2= x
4) |x- 4 | = | 2x+3 |
5) (x - 1\3 )^3 = -1\27
6) (x + 1\2)^2 = 5\5
7) | (- 2\2\3)^2 - x | - 1\3 = 0
tìm x, biết
1. -11/2x + 1= 1/3x - 1/4
2. 2x- 2/3 - 7x = 3/2 - 1
3. 3/2x - 2/5 = 1/3x - 1/4
4. 2/3 - 5/3x= 7/10x + 5/6
5. 2x -1/4 = 5/6 - 1/2x
6. 3x - 5/3 = x - 1/4
7. - 5/6 + 3x = 2/3 - 1/2x
8. 1/2 ( x + 2 ) - 4( x - 1/4 ) = 1/2x
9. 5/2( x - 3/5 ) - 1/10 = x-3
10. -4/3( x - 1/4 ) = 3/2( 2x - 1 )
Giúp mk với !!!
(x+1)/199 + (x+2)/198 + (x+3)/197 + (x+4)/196 + (x+220)/5 = 0 . Ai giúp mik ik , mik cảm ưn 
a) 1/4 - 3 (1/12 + 3/8 )
b) ( -2/3 + 3/5 ) : 1/50 - 30
mọi người giải giúp em vs ạ em cần gấp ạ. xin cảm ơn
Tìm x, biết:
a) 3/(x+2)(x+5) + 5/(x+5)(x+10) + 7/ (x+10)(x+7) = x/(x+2)(x+17) với x thuộc {-2,-5,-10,-17}
b) 2/(x-1)(x-3 + 5/(x-3)(x-8) + 12/(x-8)(x-20) -1/x-20 =-3/4 với x thuộc {1,3,8,,20}
HELP ME!!!!
