![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có: 23 + 3x = 56 : 53
23 + 3x = 5(6-3)
23 + 3x = 53
23 + 3x = 125
3x = 125 – 23
3x = 102
x = 102 : 3
x = 34
![](https://rs.olm.vn/images/avt/0.png?1311)
Đáp án: B
25+5x= 5 6 : 5 3
25+5x=53
25+5x=125
5x=125-25
5x=100
x=100:5
x=20
![](https://rs.olm.vn/images/avt/0.png?1311)
b: Ta có: 7x-8=713
nên 7x=721
hay x=103
c: Ta có: x-36:18=12
nên x-2=12
hay x=14
d: Ta có: (x-36):18=12
nên x-36=216
hay x=252
![](https://rs.olm.vn/images/avt/0.png?1311)
( 6x - 39 ) : 3 = 201
6x - 39 = 603
6x = 642
x = 107
23 + 3x = 56 : 53
23 + 3x = 125
2x = 102
x = 51
![](https://rs.olm.vn/images/avt/0.png?1311)
a. (6x-39):3=201 \(b,23+3x=5^6:5^3\)
6x-39=201.3 \(23+3x=5^3\)
6x-39=603 \(23+3x=125\)
6x=603+39 \(3x=125-23\)
6x=642 \(3x=102\)
x=642:6 \(x=102:3\)
x=107 \(x=34\)
đúng nha
thanks bn nhìu
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có: (6x – 39) : 3 = 201
6x – 39 = 201 . 3
6x – 39 = 603
6x = 603 + 39
6x = 642
x = 642 : 6
x = 107
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
3. ( 3 x - 9 ) = 81
3 x - 9 = 81 : 3
3 x - 9 = 27
3 x = 27 + 9
3 x = 36
x = 36 : 3
x = 12
[( 6 x - 32 ) : 2 + 56 ] . 14 = 2814
( 6 x - 32 ) : 2 + 56 = 2814 : 14
( 6 x - 32 ) : 2 = 201 - 56
6 x - 32 = 145. 2
6 x = 290 + 32
x = 322 : 6
dư nha bạn
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 2011 : { 639 : [ 316 – ( 78 + 25 )] : 3 }
= 2011 : { 639 : [ 316 – 103 ] : 3}
= 2011 : ( 639 : 213 : 3 ) = 2011 : (3 : 3 ) = 2011 : 1 = 2011
b) ( 3x – 2 3 ) . 7 = 7 4
3x – 8 = 7 4 : 7
3x – 8 = 7 3
3x – 8 = 343
3x = 343 + 8
3x = 351
x = 351 : 3 = 117
c) (8705 + 5235) – 5x = 3885
13940 – 5x = 3885
5x = 13940 – 3885
5x = 10055
x = 10055 : 5 = 2011
(6x-39):3=201
6x-39=201.3
6x-39=603
6x=603+39
6x=642
x=107
23+5x=5^3
23+5x=125
5x=125-23
5x=102
x=102:5
x=20,4