1. Tìm X biết:
a/ 3.(x-9)+15=12+27
b/ 2640+[(900-3.x):45].24=3000
c/ 1404:[118-(4.x+6)]=27
d/ 480-120=(999-9.x):60.24
e/ (x+74)-318=200
f/ 3636:(12.x-91)=36
g/(x:23+45).47=8911
DẤU . LÀ DẤU x ĐÓ NHA CÁC BẠN
Tìm x biết
a) (x+74)-318=2015
b) 3636:(12 x X-91)=36
c) (x :23+45)x67=8911
a) ( x + 74 ) - 318 = 2015
=> x + 74 = 2015 + 318
=> x + 74 = 2333
=> x = 2333 - 74
=> x = 2259
b) 3636 : ( 12 . x - 91 ) = 36
=> 12 . x - 91 = 3636 : 36
=> 12 . x - 91 = 101
=> 12 . x = 101 + 91
=> 12 . x = 192
=> x = 192 : 12
=> x = 16
c) ( x : 23 + 45 ) . 67 = 8911
=> x : 23 + 45 = 8911 : 67
=> x : 23 + 45 = 133
=> x : 23 = 133 - 45
=> x : 23 = 88
=> x = 88 . 23
=> x = 2024
Tìm x, biết :
a) ( x + 74) - 318 = 2015
(x + 74) = 2015 + 318
(x + 74) = 2333
x = 2333 - 742
x = 2259
b) 3636 : (12 . x - 91) = 36
12 . x - 91 = 3636 : 36
12. x - 91 = 101
12 . x = 101 + 91
12 . x = 192
x = 192 : 12
x = 16
c) ( x : 23 + 45) . 67 = 8911
(x : 23 + 45) = 8911 : 67
(x : 23 + 45) = 133
x : 23 = 133 - 45
x : 23 = 88
x = 88 . 23
x = 2024
. là nhân nha
tìm x
a) (x+74)-318=200
b)3636:(12*x-91)=36
c)(x:23+45)*67=8911
giải hộ minh nha gấp lắm
a. (x+74)-318=200
=>x+74=200+318
x+74=518
x =518-74
x =444
b. 3636:(12.x-91)=36
=> 12.x-91=3636:36
12.x-91=101
12.x =101+91
12.x =192
x =192:12
x =16
c. (x:23+45).67=8911
=>x:23+45=8911:67
x:23+45=133
x:23 =133-45
x:23 =88
x =88.23
x =2024
318-74=244
200+318=518
mình chỉ biết giải đến đấy thôi đừng giận mình nhé
Bài 1 : Tìm x :
a ) ( x + 74 ) - 318 = 200 .
b ) 3636 : ( 12 x \(x\)- 91 ) = 36 .
c ) ( \(x\): 23 + 45 ) x 67 = 8911 .
d ) ( 3 x \(x\)- 6 ) + 57 = 60 .
a ) ( x + 74 ) - 318 = 200
x + 74 = 200 + 318
x + 74 = 518
x = 518 - 74
x = 444
b ) 3636 : ( 12 . x - 91 ) = 36
12 . x - 91 = 3636 : 36
12 . x - 91 = 101
12 . x = 101 + 91
12 . x = 192
x = 192 : 12
x = 16
c ) ( x : 23 + 45 ) . 67 = 8911
x : 23 + 45 = 8911 : 67
x : 23 + 45 = 133
x : 23 = 133 - 45
x : 23 = 88
x = 88 . 23
x = 2024
d ) ( 3 . x - 6 ) + 57 = 60
3 . x - 6 = 60 - 57
3 . x - 6 = 3
3 . x = 3 + 6
3 . x = 9
x = 9 : 3
x = 3
\(a)\) \(\left(x+74\right)-318=200\)
\(x+74=518\)
\(x=444\)
Vậy x = 444
\(b)\) \(3636:\left(12x-91\right)=36\)
\(12x-91=101\)
\(12x=192\)
\(x=16\)
Vậy x = 16
\(c)\) \(\left(x:23+45\right)67=8911\)
\(x:23+45=133\)
\(x:23=88\)
\(x=2024\)
Vậy x = 2024
\(d)\left(3x-6\right)+57=60\)
\(3x-6=3\)
\(3x=9\)
\(x=3\)
Vậy x = 3
Tìm x là số tự nhiên biết
a. [x + 74] - 318 =200
b. 3636 : [12 nhân x - 91 ] =36
c. [x : 23 + 45 ] nhân 67 =8911
d. x mũ 10 = x
e. 2 mũ x -15 =17
f.[ 7 nhân x trừ 11 ] mũ 3 = 2 mũ 5 nhân 5 mũ 2 + 200
bạn có thể ghi cách giải ra được hk
a) (x + 74) - 318 = 200
b) 3636 : (12 . x - 91) = 36
c) (x : 26 + 45) . 67 = 8911
d) 720 : [41 - (2x + 5)] = 8 . 5
e) 128 - 3 . (x + 4) = 23
f) (5 . x +4) - 1 = 13
g) (4x - 8) - 3 = 5
Tìm x :
a, 2640+(( 900 -3x )/45)*24=3000
b, 1404:(118-(4x+6))=27
c, 16/8x-2019/2021
d, 5xmũ 2 -3x=0
e, 3(x-1)+4(x-1)mũ 2 =0
f,2(x-2) mũ 2 =(x-2)
g, (x-2020) mũ 4 = ( x-2020) mũ 2
b. 1404 : [118 - (4x + 6)] = 27
118 - (4x + 6) = 52
4x + 6 = 66
4x = 60
x = 15
d) \(5x^2-3x=0\)
\(\Leftrightarrow x\left(5x-3\right)=0\)
\(\Leftrightarrow\orbr{\begin{cases}x=0\\5x-3=0\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=0\\x=\frac{3}{5}\end{cases}}\)
e) \(3\left(x-1\right)+4\left(x-1\right)^2=0\)
\(\Leftrightarrow\left(x-1\right)\left[3-4.\left(x-1\right)\right]=0\)
\(\Leftrightarrow\orbr{\begin{cases}x-1=0\\3-4\left(x-1\right)=0\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=1\\4\left(x-1\right)=3\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=1\\x-1=\frac{3}{4}\Rightarrow x=\frac{7}{4}\end{cases}}\)
f) \(2\left(x-2\right)^2=\left(x-2\right)\)
\(\Leftrightarrow\orbr{\begin{cases}x-2=0\\2\left(x-2\right)-1=0\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=2\\x-2=\frac{1}{2}\Rightarrow x=\frac{5}{2}\end{cases}}\)
g) \(\left(x-2020\right)^4=\left(x-2020\right)^2\)
\(\Leftrightarrow\orbr{\begin{cases}\left(x-2020\right)^2=0\\\left(x-2020\right)^2-1=0\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=2020\\x=2019,x=2021\end{cases}}\)
tìm x
67 - 3x = 31 , 18 + 3x =24
( x - 36 ) : 18 = 12 , ( x + 74 ) - 318 = 200
3636 : ( 12x - 91 ) = 36 ,
( x : 23 + 45 ) x 67 = 8911
các bạn giúp mình với
tìm x
67 - 3x = 31
=> 3x = 36
=> x = 12 ,
18 + 3x =24
=> 3x = 6
=> x = 2
( x - 36 ) : 18 = 12
=> x - 36 = 216
=> x = 252
, ( x + 74 ) - 318 = 200
=> x + 74 = 518
=> x = 444
3636 : ( 12x - 91 ) = 36 ,
=> 12x - 91 = 101
=> 12x = 192
=> x = 16
( x : 23 + 45 ) x 67 = 8911
=> x : 23 + 45 = 133
=> x : 23 = 88
=> x = 2024
Tìm x
67 - 3x = 31
=> 3x = 67 - 31
=> 3x = 46
=> x = 46/3
18 + 3x = 24
=> 3x = 24 - 18
=> 3x = 6
=> x = 2
(x - 36) : 18 = 12
x - 36 = 12.18
x - 36 = 216
x = 216 + 36
x = 252
(x + 74) - 318 = 200
x + 74 = 200 + 318
x + 74 = 518
x = 518 - 74
x = 444
3636 : (12x - 91) = 36
12x - 91 = 3636 : 36
12x - 91 = 101
12x = 101 + 91
12x = 192
x = 16
(x : 23 + 45) x 67 = 8911
x : 23 + 45 = 8911 : 67
x : 23 + 45 = 133
x : 23 = 133 + 45
x : 23 = 178
x = 4094
\(67-3x=31\)
\(3x=36\)
\(x=12\)
\(18+3x=24\)
\(3x=6\)
\(x=2\)
\(\left(x-36\right):18=12\)
\(x-36=216\)
\(x=252\)
\(\left(x+74\right)-318=200\)
\(x+74=518\)
\(x=444\)
\(3636:\left(12x-91\right)=36\)
\(12x-91=101\)
\(12x=192\)
\(x=12\)
\(\left(\frac{x}{23}+45\right).67=8911\)
\(\frac{x}{23}+45=133\)
\(\frac{x}{23}=88\)
\(\Rightarrow\frac{x}{23}=\frac{2024}{23}\)
\(\Rightarrow x=2024\)
Tìm X
A. 3636: (12x X - 91) =36
B. (X: 22+ 45) x67= 8911
C. (X +74) -318= 200
D.5x X- 18 = 8+9
L. 1440: (125- X) =12
A . 3636 : ( 12 x X - 91 ) = 36
( 12 x X - 91 ) = 3636 : 36
( 12 x X - 91 ) = 101
12 x X = 101 + 91
12 x X = 192
X = 192 : 12
X = 16
B . (X: 22+ 45) x67= 8911
(X: 22+ 45) = 8911 : 67
(X: 22+ 45) = 133
X: 22 = 133 - 45
X: 22 = 88
X = 88 x 22
X = 1936
C . (X +74) -318= 200
X + 74 = 200 + 318
X + 74 = 518
X = 518 - 74
X = 444
D . 5x X- 18 = 8+9
5x X - 18 = 17
5x X = 17 + 18
5x X = 35
X = 35 : 5
X = 7
L . 1440: (125- X) =12
125 - X = 1440 : 12
125 - X = 120
X = 125 - 120
X = 5
K MÌNH NHA !!!
A. X=16
B. X=1936
C. X=444
D. X=7
L. X=5
tìm x biết :
a , ( x + 74 ) -318 =200
b , 3636 : ( 12x - 91 ) = 36
c , ( x : 23 + 45 ) . 67 = 8911
\(a,\left(x+74\right)-318=200\)
\(\left(x+74\right)=200+318\)
\(\left(x+74\right)=518\)
\(x=518-74\)
\(x=444\)
\(b,3636:\left(12x-91\right)=36\)
\(\left(12x-91\right)=3636:36\)
\(\left(12x-91\right)=101\)
\(12x=101+91\)
\(12x=192\)
\(x=192:12\)
\(x=16\)
\(\left(x:23+45\right).67=8911\)
\(\left(x:23+45\right)=8911:67\)
\(\left(x:23+45\right)=133\)
\(x:23=133-45\)
\(x:23=88\)
\(x=88.23\)
\(x=2024\)
Mk ko ghi lại đề mà làm tiếp luôn nha!
a) (ĐỀ)
x+74=200+318
x+74=518
x =518-74
x =444
b) (ĐỀ)
12x-91=3636:36
12x-91=101
12x =101+91
12x = 192
x = 192:12
x = 16
c) (ĐỀ)
x:23+45=8911:67
x:23+45= 133
x:23 =133-45
x:23 = 88
x = 88.23
x = 2024
K cho mk nha bn!
a ) (x+74 ) - 218 = 200 \(\Leftrightarrow\) x+74-218 = 200 \(\Leftrightarrow\) x= 200+218+74 \(\Leftrightarrow\) x= 492 vậy x = 492 b, 3636 : ( 12x -91) =36 \(\Leftrightarrow\)12x-91 = 3636: 36 \(\Leftrightarrow\)12x-91 = 101 \(\Leftrightarrow\) 12x = 101+91 \(\Leftrightarrow\) 12x = 192 \(\Leftrightarrow\) x= 16 vậy x = 16
c, ( x : 3 +45 ) . 67 = 8911 \(\Leftrightarrow\) x : 3 +45 = 8911: 67 \(\Leftrightarrow\) x : 3 = 133 - 45 \(\Leftrightarrow\) x : 3 = 88 \(\Leftrightarrow\) x= 88 . 3 \(\Leftrightarrow\) x=264
vậy x= 264