TÌm x biết rằng :
a/ 6.x - 37 = 1818 : 18 b/ x : 23 + 45 = 270
Tìm x:
a/ 1818 : (6x - 37) = 18
b/ (x : 23 + 45) . 67 = 8911
a/ 1818 : (6x - 37) = 18
6x- 37 = 101
6x = 138
x= 23
b/ (x : 23 + 45) . 67 = 8911
x : 23 + 45 = 133
x: 23 = 88
x = 2024
a/ 1818 : ( 6x - 37 ) = 18
6x - 37 = 1818 : 18
6x - 37 = 101
6x = 101 + 37
6x = 138
x = 138 : 6
x = 23
b/ ( 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
\(a,1818:\left(6x-37\right)=18\)
\(\Leftrightarrow6x-37=101\)
\(\Leftrightarrow6x=138\)
\(\Leftrightarrow x=23\)
Vây x = 23
b, \(\left(\frac{x}{23}+45\right).67=8911\)
\(\Leftrightarrow\frac{x}{23}+45=133\)
\(\Leftrightarrow\frac{x}{23}=88\)
\(\Leftrightarrow x=88.23=2024\)
Vậy x = 2024.
tìm x
(x+216):61+1=202
1818:(6x-37)+1=19
(x:23+45)x67+3=8914
a) ( x + 216 ) : 61 + 1 = 202
( x + 216 ) : 61 = 201
( x + 216 ) = 12261
x = 12045
b) 1818 : ( 6x - 37 ) + 1 = 19
1818 : ( 6x - 37 ) = 18
( 6x - 37 ) = 101
6x = 138
x = 23
c) ( x : 23 + 45 ) x 67 + 3 = 8914
( x : 23 + 45 ) x 67 = 8911
x : 23 + 45 = 133
x : 23 = 88
x = 2024
(x + 216) : 61 + 1 = 202
=> (x + 216) : 61 = 201
=> x + 216 = 12261
=> x = 12045
vậy_
1818 : (6x - 37) + 1 = 19
=> 1818 : (6x - 37) = 18
=> 6x - 37 = 101
=> 6x = 138
=> x = 23
vậy_
(x : 23 + 45) x 67 + 3 = 8914
=> (x : 23 + 45) x 67 = 8911
=> x : 23 + 45 = 133
=>x : 23 = 88
=> x = 2024
vậy_
\(a.\left(x+216\right):61+1=202.\)
\(\Leftrightarrow\left(x+216\right):6=201\)
\(\Leftrightarrow x+216=1206\)
\(\Rightarrow x=990\)
\(b.1818:\left(6x-37\right)+1=19.\)
\(\Leftrightarrow1818:\left(6x-37\right)=18\)
\(\Leftrightarrow6x-37=101\)
\(\Leftrightarrow6x=138\)
\(\Rightarrow x=23\)
\(c.\left(x:23+45\right)\times67+3=8914\)
\(\Leftrightarrow\left(x:23+45\right)\times67=8911\)
\(\Leftrightarrow x:23+45=133\)
\(\Leftrightarrow x:23=88\)
\(\Rightarrow x=2024\)
Tìm x ϵ N biết :
a) 280 – ( x – 140 ) : 35 = 270 ;
b)( 190 – 2x ) : 35 – 32 = 16;
c) 720 : [ 41 – ( 2x – 5 ) ] = 23 .5
d) ( x : 23 + 45 ) . 37 – 22 = 24 . 105 ;
e) ( 3x – 4 ) . ( x – 1 ) 3 = 0 ;
f) 22x-1 : 4 = 83
g) x17 = x ;
h) ( x – 5 ) 4 = ( x – 5 ) 6 ;
i) ( x + 2 ) 5 = 210 ;
k ) 1 + 2 + 3 + … + x = 78
l) ( 3 .x – 24) . 73 = 2 .74 ;
n) 5x : 52 = 125 ;
m) ( x + 1) 2 = ( x + 1) 0 ;
o) ( 2 + x ) + ( 4 + x ) + ( 6 + x ) + ……+ ( 52 + x ) = 780 ;
p) 70⋮ x , 80 ⋮ x và x > 8
q) x ⋮ 12 , x ⋮ 25 , x ⋮ 30 và 0 < x < 500
Tìm x, biết:
a) − x − 1 9 = − 2 45
b) − 3 7 − x = 4 5 + − 2 3
a ) x = 2 45 − 1 9 = − 1 15 ; b ) x = − 3 7 − 4 5 − − 2 3 = − 59 105
Tìm x, biết:
a ) x − 5 7 = 1 9 ; b ) 2 15 − x = 3 10 c ) − x − 1 9 = − 2 45 ; d ) − 3 7 − x = 4 5 + − 2 3
a ) x = 1 9 + 5 7 = 52 63 b ) x = 2 15 − 3 10 = − 1 6
c ) x = 2 45 − 1 9 = − 1 15 ; d ) x = − 3 7 − 4 5 − − 2 3 = − 59 105
Tìm X biết:
1) X - 105 : 21 = 15
2) ( X - 105 ) : 21 = 15
3) ( 32 + X ) : 17 = X
4) 1818 : ( 6X - 37 ) = 18
1)\(x-105:21=15\)
\(x-5=15\)
\(x=15+5\)
\(x=20\)
Vậy \(x=20.\)
2)\(\left(x-105\right):21=15\)
\(\left(x-105\right)=15.21\)
\(x-105=315\)
\(x=315+105\)
\(x=420\)
Vậy \(x=412.\)
4)\(1818:\left(6x-37\right)=18\)
\(6x-37=1818:18\)
\(6x-37=101\)
\(6x=101+37\)
\(6x=138\)
\(x=138:6\)
\(x=23\)
Vậy \(x=23.\)
mk quên,còn phần 3) nữa:
3)\(\left(32+x\right):17=x\)
\(32+x=x.17\)
\(\Leftrightarrow x=2\)
Vậy \(x=2.\)
Tìm x, biết:
x X 23 - x X 5 = 1818
x × 23 - x × 5 = 1818
x × (23 - 5) = 1818
x × 18 = 1818
x = 1818 : 18
x = 101
1818 : (x-37)=18
\(\Rightarrow x-37=1818:18\\ \Rightarrow x=101+37\\ \Rightarrow x=138\)
Tìm x biết
a) 17x+33x=100
b)45(x+6) =270
a, x = 2
b, x = 0
mình đầu tiên k mình nha bạn
:))))