123-5 . [x+4]=38
123-5(x+4)=38
\(123-5\left(x+4\right)=38\\ 5\left(x+4\right)=85\\ x+4=17\\ x=13\)
\(123-5\left(x+4\right)=38\)
\(\Rightarrow123-5x-20=38\)
\(\Rightarrow-5x=-65\)
\(\Rightarrow x=13\)
Vậy: ...
\(123-5x-20=38\Leftrightarrow123-5x=58\Leftrightarrow5x=65\Leftrightarrow x=13\)
Tìm x A, 123-5(x+4)=38
`123-5(x+4)=38`
`5x-20=123-38`
`5x-20=85`
`5x=85+20`
`5x=105`
`x=105:5`
`x=21`
123-5.(x+4)=38
5x-20=123-38
5x-20=85
5x=85+20
5x=105
x=105:5
x=21
123 – 5 .( x : 2 + 4 ) = 38
\(123-5\left(x:2+4\right)=38\\ \Rightarrow5\left(x:2+4\right)=85\\ \Rightarrow x:2+4=17\\ \Rightarrow x:2=13\\ \Rightarrow x=26.\)
\(123-5\left(x:2+4\right)=38\)
\(5\left(x:2+4\right)=123-38\)
\(5\left(x:2+4\right)=85\)
\(x:2+4=85:5\)
\(x:2+4=17\)
\(x:2=17-4\)
\(x:2=13\)
\(x=13.2\)
\(x=26\)
\(123-5\left(x:2+4\right)=38\\ 5\left(x:2+4\right)=85\\ x:2+4=17\\ x:2=13\\ x=26\)
123-5(x+4)=38
Giải:
\(123-5\left(x-4\right)=38\)
\(\Leftrightarrow5\left(x-4\right)=123-38\)
\(\Leftrightarrow5\left(x-4\right)=85\)
\(\Leftrightarrow x-4=\dfrac{85}{5}\)
\(\Leftrightarrow x-4=17\)
\(\Leftrightarrow x=17+4\)
\(\Leftrightarrow x=21\)
Vậy \(x=21\).
Chúc bạn học tốt!!!
123-5(x+4)=38
5(x+4)=38
5(x+4)=123-38
5(x+4)=85
x+4=85:5
x+4=17
x=17-4
x=13
Chúc bạn học tốt nha
123 - 5 . ( x + 4 ) = 38
123 - 5 . ( x + 4 ) = 38
5 . ( x + 4 ) = 123-38
5 . ( x + 4 ) = 85
5 . ( x + 4 ) = 85
( x + 4 ) = 85 : 5
( x + 4 ) = 17
x = 17 - 4
x = 13
Vậy x=13
123 - 5 . ( x + 4 ) = 38
5 . ( x + 4 ) = 123-38
5 . ( x + 4 ) = 85
5 . ( x + 4 ) = 85
( x + 4 ) = 85 : 5
( x + 4 ) = 17
x = 17 - 4
x = 13
123 - 5 . ( x + 4 ) = 38
5 . ( x + 4 ) = 123 - 38
5 . ( x + 4 ) = 85
x + 4 = 85 : 5
x + 4 = 17
x = 17 - 4
x = 13
123-5.(x +4)=38
\(123-5.\left(x+4\right)=38\)
\(5.\left(x+4\right)=123-38\)
\(5.\left(x+4\right)=85\)
\(x+4=85\div5\)
\(x+4=17\)
\(x=17-4\)
\(x=13\)
Chúc bn hk tốt nhoa :)
123-5.(x+4)=38
5.(x+4)=123-38
5.(x+4)=85
x+4 =85:5
x+4=17
x =17-4
x = 13
123-5.(x+4)=38
5.(x+4)=123-38
5.(x+4)=85
x+4=85:5
x+4 =17
x =17-4
x =13
Chúc bn học tốt
123-5*(x-4)=38
5*(x-4)=123-38
5*(x-4)=85
x-4=85:5
x-4=17
x=17+4
x=21
5*(x-4)=123-38
5*(x-4)=85
x-4=85:5
x-4=17
x=17+4
x=21
123 - 5.(x - 4) = 38
5.(x - 4) = 123 - 38
5.(x - 4) = 85
x - 4 = 85 : 5
x - 4 = 17
x = 17 + 4
x = 21
123 - 5.(x + 4) = 38
123 - 5.( x + 4 ) = 38
5.(x + 4 ) = 123 - 38
5.( x + 4 ) = 85
x + 4 = 85 : 5
x + 4 = 17
x = 17 - 4
x = 13
k mk nha mấy bạn
123-5.(x+4)=38
5.(x+4)=123-38
5.(x+4)=85
x+4 =85:5
x+5 =17
x=17-5
x=12
xin loi to bi nham nha
kq dung la =13
chuc bn hoc gioi!
nha@
123 -5 *( x+4) = 38
123-5.(x+4)=38
5(x+4)=85
x+4=17
x=13
123-5×(x+4)=38
5×(x+4)=123-38
5×(x+4)=85
x+4 =85÷5
x+4 =17
x =17-4
x =13
Vậy x =13