5.(x+4)+38=123
5.(x+4) = 123- 38
5.(x+4) = 85
x+4 = 85:5
x+4 = 17
x = 17 -4
x = 13
vậy x=13
\(5.\left(x+4\right)+38=123\)
\(5x+20=123-38\)
\(5x+20=85\)
\(5x=65\)
x = 13
Vậy x = 13
Ta có: \(5\left(x+4\right)+38=123\)
\(\Leftrightarrow5\left(x+4\right)=123-38=85\)
\(\Leftrightarrow x+4=\dfrac{85}{5}=17\)
\(\Leftrightarrow x=17-4=13\)
Vậy: \(x=13\)
5.(x+4)+38=123
5.(x+4) =123-38
5.(x+4) =85
x+4 =85:5
x+4 =17
x =17-4
x =13
Ta có: 5.(x+4)+38=123
=>5.(x+4)=123-38
=>5.(x+4)=85
=>(x+4)=85:5
=>x+4=17
=>x=17-4=13
Vậy x=13
5.(x+4)+38=123
⇒5(x+4)=123-38
⇒5(x+4)=85
⇒x+4=85:5
⇒x+4=17
⇒x=17-4
⇒x=13
Vậy x=13
Chúc bạn hok tốt!!!!!!!!!!!!!
5.(x+4) + 38 = 123
ta có
5.(x+4) =123-38
5.(x+4) = 85
x+4 = 85:5
x+4 = 17
x =17-4
x 13
Vậy x = 13
5.(x + 4)+38=123
5.(x + 4) =123-38
5.(x + 4) =85
x + 4 =85:5
x + 4 =17
x =17-4
x =13
⇒5. (x+4) = 123-38
⇒5. (x+4) = 85
⇒ (x+4) = 85:5
⇒ (x+4) = 17
⇒ x = 17-4
⇒ x = 13
Vậy x = 13
5.(x+4)+38=123
5.(x+4)=123-38
5.(x+4)=85
x+4=85:5
x+4=17
x=17-4
x=13