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a)7x-8=713
7x =713+8
7x =721
x =721:7
x =103
Vậy x=103
b)8(x-3)=0
x-3=0:8
x-3=0
x=0+3
x=3
Vậy x=0
4x:7=0
4x =0*7
4x =0
x =0:4
x =0
Vậy x=0
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(4x:17=0\)
\(4x=0\)
\(x=0\)
vay \(x=0\)
b) \(7x-8=713\)
\(7x=713+8\)
\(7x=721\)
\(x=103\)
vay \(x=103\)
c) \(8\left(x-3\right)=0\)
\(8x-24=0\)
\(8x=24\)
\(x=3\)
vay \(x=3\)
d) \(0:x=0\)
\(\Rightarrow x\in R\) va \(x\ne0\)
vay \(x\in R\)va \(x\ne0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 4X : 17 = 0
4X= 0 x17
4X = 0
X = 0 : 4
X = 0
Vậy X = 0
b) 7X - 8 = 713
7X = 713 + 8
7X = 721
X = 721 : 7
X = 103
Vậy X = 103
c) 8 ( X - 3 ) = 0
X - 3 = 0 : 8
X - 3 = 0
X = 0 + 3
X = 3
Vậy X = 3
a. 4x : 17 = 0
=> 4x=0.17
=> 4x=0
=> x=0:4
=> x=0
b. 7x - 8 = 713
=> 7x=713+8
=> 7x = 721
=> x = 721 : 7
=> x= 103
c. 8(x - 3) = 0
=> x-3=0:8
=> x-3=0
=> x=0+3
=> x=3
![](https://rs.olm.vn/images/avt/0.png?1311)
4x :17=0
4x=0x17
4x=0
x=0:4
x=0
7x -8=713
7x=713+8
7x=721
x=721:7
x=103
8(x-3)=0
(x-3)=0:8
(x-3)=0
x=0+3
x=3
0:x=0
x=0:0
x=0;1;2;3;4;5;6;7...
\(4x:17=0\) \(7x-8=713\) \(8\left(x-3\right)=0\)
\(4x=0\) \(7x=721\) \(x-3=0\)
\(x=0\) \(x=103\) \(x=3\)
\(0:x=0\)
\(x=0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
4x:17=0
4x=0.17
4x=0
x=0:4
x=0
7x-8=713
7x=713+8
7x=721
x=721:7
x=103
8(x-3)=0
x-3=0:8
x-3=0
x=0+3
x=3
![](https://rs.olm.vn/images/avt/0.png?1311)
7x-8=713 8(x-3)=0 4x:17=0
7x=713+8 =>x-3=0 =>4x=0
7x=721 =.x=3 =>x=0
x=721:7
x=103
7x-8=713 8(x-3)=0 4x÷17=0
7x=713+8 x-3=0÷8 4x=17×0
7x=721 x-3=0 4x=0
x=721÷7 x=3+0 ; x=0÷4
x=103 x=3 x=0
![](https://rs.olm.vn/images/avt/0.png?1311)
a/
4x:17=0
4x=0x17
4x=0
x=0:4
x=0
a. 4x : 17 = 0 <=> 4x = 0.17 = 0 => x = 0
b. 7x- 8 =713 <=> 7x = 713 + 8 = 721 => x = 721 : 7 = 103
c. 8 ( x - 3) = 0 <=> x - 3 = 0: 8 = 0 => x = 3
d. 0 : x = 0 với mọi x khác 0