\(41-2^{x+1}=9\)
\(\Leftrightarrow2^{x+1}=32\)
\(\Leftrightarrow x+1=5\)
hay x=4
41 - 2x-1=9
<=> 2x-1 = 32
<=> 2x-1 = 25
<=> x - 1 = 5
<=> x = 4
Tìm x
a) [( 8x - 12 ) : 4] .33=36
b) 41 - 2x+1 = 9
41-2^x+1=9
2^x+1-2x=32
help me
a,210-5(x-11)=200
b,(2x+1):7=2^2+3^2
c,450:[41-(2x-5]=3^2.5
d,(5x-9).7+3=80
tìm X
1/4+2.(3.x-2/3)=1
(1/2+2X). (2x-3)=0
(4x-5).(5/4.x-2)=0
1/9-(2.x+1/2)mũ 2=0
9.(3x-1/2)mũ 2 =4
1/2.x+2/3.x-1=-10/3
X+1/12=-3/9
1 . 4(x+41)=400
2. 11(x-9)=77
3. 5(x-9)=350
4. 2x-49=3.32
5. 200-(2x+6)=43
Tìm x
a)7/x+4/5×9+4/9×13+...+4/41×45=29/93
b)x+2/1×3+2/3×5+...+2/49×51=5/17
c)1/4-1/2×4-1/4×6-...-1/2x(2x+2)=23/176
a)7/x+4/5×9+4/9×13+...+4/41×45=29/93
b)x+2/1×3+2/3×5+...+2/49×51=5/17
c)1/4-1/2×4-1/4×6-...-1/2x(2x+2)=23/176
Tìm x
Bài 2 (1,5 điểm): Tìm x
a) 9(x + 28) = 0 b) 720 : [41 – (2x – 5)] = 23.5
BÀI 1:TÌM x,BIẾT
A) 9:(CHIA HẾT) x(2x-1)
B) (2x+11) : (CHIA HẾT)(x-3)
C)1+2+3+...+1000+1012=5252
D) |x-3|-4=3
E)4 x 3-41=87
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