70-5.(x-3)=45 tìm x
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70-5(x-3)=-45
=>5(x-3)=70+45=115
=>x-3=23
=>x=23+3=26
70 - 5(x - 3) = -45
=> 5(x - 3) = 70 - (-45)
=> 5(x - 3) = 115
=> x - 3 = 23
=> x = 26
![](https://rs.olm.vn/images/avt/0.png?1311)
70‐5.﴾x‐3﴿=45
=>5.﴾x‐3﴿=70‐45
=>5.﴾x‐3﴿=25
=>x‐3=25:5
=>x‐3=5
=>x=5+3
=>x=8
70-5.(x-3)=45
=>5.(x-3)=70-45
=>5.(x-3)=25
=>x-3=25:5
=>x-3=5
=>x=5+3
=>x=8
![](https://rs.olm.vn/images/avt/0.png?1311)
70-5(x-3)=45
5(x-3)=70-45
5(x-3)=25
(x-3)=25:5
x-3=5
x=5+3
x=8
![](https://rs.olm.vn/images/avt/0.png?1311)
Tìm x
70-5.(x-3)=45
5(x-3) =70-45
5(x-3) = 25
x-3 = 25:5
x-3 = 5
x=5+3
x=8
![](https://rs.olm.vn/images/avt/0.png?1311)
70 - 5 ( x - 3 ) = 45
5 ( x - 3 ) = 70 - 45 = 25
x - 3 = 25 : 5 = 5
x = 5 + 3
x = 8
![](https://rs.olm.vn/images/avt/0.png?1311)
70 – 5.(x – 3) = 45
5.(x -3) = 70 - 45
5.(x – 3) = 25
x – 3 = 25 : 5
x – 3 = 5
x = 5 + 3
x = 8
Vậy x = 8
![](https://rs.olm.vn/images/avt/0.png?1311)
70 - 5 . ( x - 3 ) = 45
5 . ( x - 3 ) = 70 - 45
5 . ( x - 3 ) = 15
x - 3 = 15 : 5
x - 3 = 3
x = 3 + 3
x = 6
\(70-5\left(x-3\right)=45\)
\(\Rightarrow5\left(x-3\right)=30\)
\(\Rightarrow x-3=6\Rightarrow x=9\)
\(70-5\left(x-3\right)=45\)
\(\Leftrightarrow5\left(x-3\right)=25\)
\(\Leftrightarrow x-3=5\)
hay x=8