\(2^{3x}:2^{x+3}=32\Rightarrow2^{3x-x-3}=2^5\Rightarrow x^{2x-3}=2^5\Rightarrow2x-3=5=>2x=8=>x=4\)
\(2^{5x}:2^{4x}=32\Rightarrow2^{5x-4x}=2^5=>2^x=2^5=>x=5\)
\(\left(x-\frac{1}{2}\right)^3=8=2^3\Rightarrow x-\frac{1}{2}=2\Rightarrow x=2+\frac{1}{2}=\frac{5}{2}\)
Tìm x biet:
a,5/2x+x=32/15
b,x-7/2x=-32/15
c,-7/3x-7/4x+11/3=18/5
d,-5/6-3x=2/3
e,2x-5/9=-2/3
f,1/2-2/3x=7/12
g,7-|2x-3|=4
h,(19x+2.5^2):14=(13-8)^2-4^2
i,3/4x-2/3=2/7.1/6+5/7.1/6
k,(x+1/2).(2/3-2x)=0
l,x/2013-1/10-1/15-1/21-........-1/120=5/8
Tìm số nguyên x biết:
a, -45 : (3x - 17) = 3^2
b, (2x - 8).(-2x) = 0
c, 72 : |4x - 3| = 2^3
d, 2^(x+1) = 32
Tim x
1) 5x = 120 : 2
2) 3x + 27 = 45
3) 73 + x - 122 = 234 : 2
4) 32 - 2 ( x -1 ) = 12
5) 3 ( x + 1 ) - 15 = 36
6) 21 - ( 4x - 16 ) = 21
7)13 x - 3x = 500
8) 9x + x - 35 = 65
Giup e nha, em can gap
tìm x
17x – ( -16x – 37) = 2x +
-2x –3. (x – 17) = 34 – 2(-x + 25
17x + 3. ( -16x – 37) = 2x + 43 - 4x
103 -57: [-2. (2x – 1)2 – (-9)0] = -106
3x – 32 > -5x + 1
15 + 4x < 2x – 145
-3. (2x + 5) -16 < -4. (3 – 2x)
-2x + 15 < 3x – 7 < 19 – x
x + (x+1) + (x+2) + (x+3) + .... + 13 + 14 = 14
25 + 24 + 23 +...+ x + (x - 2) + (x – 3) = 25
Tìm STN x, biết
1) (x + 2) - 2 = 0 2) (x + 3) + 1 = 7
3) (3x - 4) + 4 = 12 4) (5x + 4) - 1 = 13
5) (4x - 8) - 3 = 5 6) 3 + (x - 5) = 7
7) 8 - (2x - 4) = 2 8) 7 + (5x + 2) = 14
9) 5 - (3x - 11) = 1 10) 16 - (8x + 2) = 6
Tìm x âm biết: |x-2|+3|2-x|+|4x-8|=32
Tìm x:
a) (3x-7)^5=32
b) (4x-1)^3=27.125
c) 2^x+2^2^x+1=96
d)3^4x +4=81 ^x+3
Giair giùm nha
tim x
2 mũ x+2 mũ x+1 =96
(3x+2)mũ 3=2.32
5 mũ x+1 -5x =500
1 x 32+7x8+4x
=200x
tìm x<0 biết |x-2|+3|2-x|+|4x-8|=32 vậy x=...
