|12 - 2x| = 0
12 - 2x = 0
2x = 12
x = 12 : 2
x = 6
\(|12-2x|=0\)\(\)
\(\Leftrightarrow|12-2x|=\pm0\)
\(\Leftrightarrow12-2x=0\)
\(\Leftrightarrow2x=12-0\)
\(\Leftrightarrow2x=12\)
\(\Leftrightarrow x=12:2\)
\(\Leftrightarrow x=6\)
\(thozz\)
|12 - 2x| = 0
12 - 2x = 0
2x = 12
x = 12 : 2
x = 6
\(|12-2x|=0\)\(\)
\(\Leftrightarrow|12-2x|=\pm0\)
\(\Leftrightarrow12-2x=0\)
\(\Leftrightarrow2x=12-0\)
\(\Leftrightarrow2x=12\)
\(\Leftrightarrow x=12:2\)
\(\Leftrightarrow x=6\)
\(thozz\)
Tìm x,y biết:
a) 3 4 x + 1 5 = 1 6 b) 1 3 + 1 2 : x = − 4 c) c ) x − 2 3 x + 1 4 = 0
d) 2 x − 3 3 4 x + 1 = 0 d) 2 3 x + 1 2 − 5 3 = 0 e) 2 x − 0 , 3 = 1 , 5
f) x . − 3 5 3 = − 3 5 5 g) x : 1 3 2 = 1 3 3 h) x 26 = 21 39
k) 1 3 x = 2 3 1 6 l) 77 7 9 5 9 = x 0 , 03 m) 2 2 3 0 , 03 = 1 7 9 x
n) 2 x − 3 2 = 16 o) 3 x − 2 5 = − 243
Tìm x,y biết :
|x-4|+|6-x|=0
|x+1|-|x-2|=0
|x+2|-|x-3|=0
|x-2|-|x-3|=0
|2x-1|-|x+1|=0
4x-6+2x=12
Tìm x:
x^3+2x^2-11x-12 = 0
tìm x biết : x (3 - 2x) + 2 (x2 - 12) = 0
Tìm các số x,y,z trong các biểu thức sau: a) |2x-4| + |3y+21| =0 b) |2x-12|+|3y+9|=-|x+y+z|
Tìm x;y biết: (12-2x)2+(3y-x)2=0
1) Tìm x biết :
a) 3/4-(1/2:x+1/2)=3/5
b)3x.(1/2x-1)=0
c)(4-x).(2x+3)=0
d)4/-3=-12/x
e)4x/-3=12/-x
X + Y = 0
A = x3 + 2x2y + 2x + xy2 + 2y + 12. Tìm A.
Tìm x
(2x-5)\(^{x+2}\)- (2x-5)\(^{x+12}\)=0
HỘ MK NHA