\(\left|x\right|+\dfrac{1}{12}=\dfrac{2}{3}\)
\(\Leftrightarrow\left|x\right|=\dfrac{2}{3}-\dfrac{1}{12}=\dfrac{7}{12}\)
hay \(x\in\left\{\dfrac{7}{12};-\dfrac{7}{12}\right\}\)
Tìm x, biết:
a) \(4\left|3x-1\right|+\left|x\right|-2\left|x-5\right|+7\left|x-3\right|=12\)
b) \(2\left|x+3\frac{1}{2}\right|+\left|x\right|-3\frac{1}{2}=\left|2\frac{1}{5}-x\right|\)
1.(x+1)/35 + (x+3)/33 = (x+5)/33 + (x+7)/20
2. (X+1)/12+ (X+2)/13 = (X+3)/14+ (X+4)/15
3. (X-85)/15+ (X-75)/13+(X-67)/11+ (X-64)/9=10
4. (X-1)/13-(2X-13)/15=(3X-15)/27- (4X-27)/29
Bài 12: Tìm giá trị nhỏ nhất của các biểu thức sau:
a) A=|2x-1/3|-1 3/4
b) B=1/3|x-2|+2|3-1/2 y|+4
Giúp mình với mình đang cần gấp 
Tìm x biết
a) |x+5| + |x-3|=9
b)|x+1| + |x-2| +|x+3|=6
c) |x-2|+|x+3|+|x-4|=2
d) 2|x+2|+|4-x|=22
e)|x-2|+|x-3|+2x-8|=9
f)3x|x+1|-2x|x+2|=12
g)|x-1|+3|x-3|-2|x-2|
lm giúp mình với mk đag cần gấp!HEPL MEEEE
Giải hộ mình vs ạ:
a> x/3=-4/12 ; b> 2mũ2 phần 3=-x/3 ; c> 0.25:1.75=3:x
d> (x-1/2).(x+1/3)>0
e> -|x-1/2|-2/5=1/10
Mình đg cần giúp
\(a.\left|x+2\right|+\left|x-1\right|=3-\left(y+2\right)^2\)
\(b.\left|x-5\right|+\left|1-x\right|=\dfrac{12}{\left|y+1\right|+3}\)
\(c.\left|y+3\right|+5=\dfrac{10}{\left(2x-6\right)^2+2}\)
\(d.\left|x-1\right|+\left|3-x\right|=\dfrac{6}{\left|y-3\right|+3}\)
1.Tìm x:
a. 4\(\left|3x-1\right|+\left|x\right|-2\left|x-5\right|+7\left|x-3\right|=12\)
Tìm x biết:
a) \(\left|x-\dfrac{1}{2}\right|+\left|x+2\right|=\dfrac{3}{4}\)
b) \(\left(\dfrac{2}{3}-2x\right).1\dfrac{1}{2}=\dfrac{3}{4}\)
c) \(\left|x-1\right|+2\left(x+4\right)=10\)
d) \(\dfrac{11}{12}+\dfrac{11}{12.23}+...+\dfrac{11}{89.100}+x=1\dfrac{2}{3}\)
e) \(\left(\dfrac{2}{11.13}+\dfrac{2}{13.15}+...+\dfrac{2}{19.21}\right)-x+4\dfrac{221}{231}=2\dfrac{1}{3}\)
Bài 1,Tìm x,biết:
a, \(4\left|3x-1\right|+\left|x\right|-2\left|x-5\right|+7\left|x-3\right|=12\)
b, \(3\left|x+4\right|-\left|2x+1\right|-5\left|x+3\right|+\left|x-9\right|=5\)
