\(\left|2x+1\right|=x-3\)\(\Rightarrow\left[\begin{array}{nghiempt}2x+1=x-3\\2x+1=3-x\end{array}\right.\)\(\Rightarrow\left[\begin{array}{nghiempt}x=-2\\x=\frac{2}{3}\end{array}\right.\)
Vậy x = - 2 ; x = 2 / 3
\(\left|2x+1\right|=x-3\)\(\Rightarrow\left[\begin{array}{nghiempt}2x+1=x-3\\2x+1=3-x\end{array}\right.\)\(\Rightarrow\left[\begin{array}{nghiempt}x=-2\\x=\frac{2}{3}\end{array}\right.\)
Vậy x = - 2 ; x = 2 / 3
Tìm x biết:
1) | 2x-1| = -19 -x
2) | 4- 3x| = 2x- 10
3) | x| = 3+ 2x
Tìm x biết:
1) | 2x-1| = -19 -x
2) | 4- 3x| = 2x- 10
3) | x| = 3+ 2x
a ) Tìm x biết : | 2x - 2 | = | 2x + 3 |
b ) Tìm GTLN của A = \(\frac{1}{\sqrt{x-2}+3}\)
c ) Tìm x để : \(\frac{2x+1}{x-2}< 2\)
Tìm x biết:
a) (2x+1)^5= (2x+1)
b) |2-5x|=|x+1|
c) |x-3|+(x^2 -9)^2=0
d) |4x+1| -2x+3=5
Tìm x biết
a,|2x-3|+|2x+4|=7
b, (x-3)x+1=(x-3)x+11
Tìm x biết
a,|x-1|+2x=3
b,|x+1|+|x+3|=10-4x
c,|x+1++3|x-2|-5|4-x|=13-2x
d,3|x-2|-2|x+5|+4|x-1|=9-7x
Tìm x, biết
3/5 - [x - 3/4 × (2x-1)+2] = 1/2
Tìm x , biết:
|x-2|+ |1-2x| =3
tìm x biết
\(\frac{7^{x+2}+7^{x+1}+7^x}{57}=\frac{5^{2x}+5^{2x+1}+5^{2x+3}}{131}\)