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\(96-3\left(x+1\right)=42\)
<=> \(3\left(x+1\right)=54\)
<=> \(x+1=18\)
<=> x=17
\(\left(x-38\right):18=12\)
<=> \(x-38=216\)
<=> \(x=254\)
học tốt
96-3( x + 1 ) = 42
3( x + 1 ) = 54
x + 1 = 18
x = 17
( x - 36 ) : 18 = 12
x - 36 = 216
x = 252
![](https://rs.olm.vn/images/avt/0.png?1311)
\(96-3\left(x+1\right)=42\)
\(3\left(x+1\right)=96-42\)
\(\left(x+1\right)=54:3\)
\(x=18-1\)
\(x=17\)
![](https://rs.olm.vn/images/avt/0.png?1311)
96-3(x + 1) = 42
3(x + 1) = 96-42
3(x + 1) = 54
x + 1 = 54 : 3
x + 1 = 18
x = 18-1
x = 17
96-3(x+1)=42
3(x+1)=96-42
3(x+1)=54
x+1=54:3
x+1=18
x=18-1
x=17
tk mik nha
![](https://rs.olm.vn/images/avt/0.png?1311)
(3x - 6) + 9 = 34 . 3
(3x - 6) + 9 = 35
(3x - 6) + 9 = 243
3x - 6 = 243 - 9
3x - 6 = 234
3x = 234 + 6
3x = 240
x = 240 : 3
x = 80
Vậy x = 80.
96 + 3 . (x - 1) = 42
3 . (x - 1) = 42 - 96
3 . (x - 1) = -54
x - 1 = -54 : 3
x - 1 = -18
x = -18 + 1
x = -17
Vậy x = -17
a,x=80
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![](https://rs.olm.vn/images/avt/0.png?1311)
96 - 3(x+1 ) = 42
=> 3(x+1) = 96 - 42 = 54
=> x + 1 = 54 : 3 = 18
x + 1 = 18
=> x = 17
96 - 3 ( x + 1 ) = 42
3 ( x + 1 ) = 96 - 42
3 (x + 1 ) = 54
x + 1 = 54 : 3
x + 1 = 18
x = 18 - 1
x = 17
![](https://rs.olm.vn/images/avt/0.png?1311)
5-(1-3x)=2x+4
5-1+3x=2x+4
5-1-4 =2x-3x
0 = x (2-3)
0 = x.(-1)
(-1) \(\ne\) 0 =>x=0
\(5-\left(1-3\chi\right)=2\chi+4\)
\(\Rightarrow5-1+3\chi=2\chi+4\)
\(\Rightarrow4-4=2\chi-3\chi\)
\(\Rightarrow0\ne-\chi\Leftrightarrow\chi\in\varnothing\)
SUN
![](https://rs.olm.vn/images/avt/0.png?1311)
96 - 3 ( x + 1 ) = 42
=>3(x+1)=54
=>x+1=18
=>x=17
80 - { 130 - (12 -4 )}
=80-{130-8}
=80-122
=-42
đợi mik tính đã
3x(x+1)=96-42
3x(x+1)=54
x+1=54chia3
x+1=18
đến đoạn này tự tính nhé
hok tốt