Tìm X
a) \(2x+\dfrac{3}{24}=3x-\dfrac{1}{32}\)
\(\Leftrightarrow\left(2x+\dfrac{3}{24}\right)-\left(3x-\dfrac{1}{32}\right)=0\)
\(\Leftrightarrow2x+\dfrac{3}{24}-3x+\dfrac{1}{32}=0\)
\(\Leftrightarrow\left(\dfrac{3}{24}+\dfrac{1}{32}\right)+\left(2x-3x\right)=0\)
\(\Leftrightarrow\dfrac{5}{32}-x=0\)
\(\Leftrightarrow x=\dfrac{5}{32}\)
2 TÌM X BIẾT
a, (5x+1)^2 = 36/49
b, (12/25)^x =(5/3)^2 -(-3/5)^4
c, (-3/4)^ 3x-1 = 256/81
d, 172 .x ^2 -7^9 :98^3 =2^3
e,5^x .(5^3)^2 =625
f, (x-2/9)^3 =(2/3)^6
Tìm x
a, 580 :( x -24 ) =329 -150 : 2
b, 7 (x-1 ) +35= 25 + 279 :9
c,4 ( 2x+ 7 ) -3 (3x -2 ) =24
d,( x-1 ) (x-2) =3(x-1)
e,( x+ 3 ) + ( x+7 ) + ( x + 11 ) + ........+ ( x+ 79 ) =860
tìm x , biết :
a, \(\dfrac{37-x}{2x+5}=\dfrac{4}{9}\)
b, \(\dfrac{x-2}{x-1}=\dfrac{x+4}{x+7}\)
c, \(\dfrac{x+3}{25}=\dfrac{9}{x+3}\)
d, \(\dfrac{x}{\dfrac{-2}{3}}=\dfrac{5}{-x}\)
e, \(\dfrac{2x-5}{\dfrac{3}{2}}=\dfrac{\dfrac{-27}{8}}{5-2x}\)
f, \(\dfrac{\dfrac{5}{9}}{\left(3x-1\right)^2}=\dfrac{1-2x}{\dfrac{25}{3}}\)
Bài 1.Tìm x biết
a, 4|3x - 1| + |x| - 2|x-5| + 7|x-3| = 12 b, 3|x + 4| - |2x + 1| - 5|x + 3| + |x - 9| = 5
c, |x + 5| - |1 - 2x| = x d, |x| - |2x + 3| = x - 1
e, |x| + |1 - x| = x + |x-3| g, |x-2| + |x-5| = 3
f, |2x - 1| + |2x - 5| = 4 m, |x-3| + |x + 5| = 8
n, |x-3| + |3x + 4| = |2x + 1|
Các bạn giúp mình nhanh với ạ mình đang cần gấp
a) 2 mũ 3 : |x-2| =2
b) | 2x + 1 | + | 5x -1 | + 7 mũ 4 = 49
c) | x mũ 3 ( x - 4 )= 5x mũ 2
d) | 2x - 5 | = 2 - x
e) x - | x + 1 | = 4
f) 3x + | 4x + 3 | = 5
1Tìm x
a, |x-1| + |x+3|=4
b,|2x+5|-2|4-x|=5
c,|x+3|+|x+1|=3x
d,|2x-3|-x=|2-x|
e,|x-1|+|x-3|+|x-5|+|x-7|=8
f,|x-2010|+|x-2012|+|x-2014|=2
2 Tìm X
|3x-2019|=2019-3x
|x+1|+...+|x+10|=605.x
1 tìm x biết
a, (x+1)^2 =169
b, (x+3)^3 = -1/27
c, (2x-4)^4= 1/265
d, (x-1/2) ^3 =1/-279
2 tìm x
a, 3<3^x <234
b, 8.16>2^x > hoặc = 4
c, 2019^x=1
d, x^2019=1
e, 5^x +5^x+2 =650
f, 3^-1 . 3^x + 5.3 ^x-1 =162
g, 32^-x .16^x =1024
tìm x
a, | 5/4x - 7/2 | - | 5/8x + 3/5 | = 0
b, 21/5 + 3 : | x/4 - 2/3 | = 6
c,| 9 + x | = 2x
d, | 2x - 3 | + x = 21
e, | 7 - 2x | + 7 = 2x
f, | -x + 2/5 | + 1/2 = 3,5
G, | 3x - 4 | + 4 = 3x
tìm x biết:
a, |2,7-x|=|-0,3|
b, 12/5 -|x+1,5|=0
c, 2. |2x-3|=1/3
d, 7,5-3.|5-2x|=-4/5
e, |3x-4|+|3y+15|=0
ê, |x-y|+ |y+9/25|=0