\(120:\left(124-4x\right)-10=5\)
\(120:\left(124-4x\right)=5+10\)
\(120:\left(124-4x\right)=15\)
\(124-4x=120:15\)
\(124-4x=8\)
\(4x=124-8\)
\(4x=116\)
\(x=116:4=29\)
=>120:[124-4x]=15
=>[124-4x]=8
=>-4x=8-124
=>-4x=-116
=>x=29
Vậy x=29
Bg
120 ÷ (124 - 4x) - 10 = 5
120 ÷ (124 - 4x) = 5 + 10
120 ÷ (124 - 4x) = 15
124 - 4x = 120 ÷ 15
124 - 4x = 8
4x = 124 - 8
4x = 116
x = 116 ÷ 4
x = 29
120:(124-4x)-10=5
120:(124-4x)=5+10
120:(124-4x)=15
(124-4x)=120:15
(124-4x)=8
4x=124-8
4x=116
x=116:4
x=29
vậy x=29
120 : (124 - 4x ) - 10 = 5 Học tốt
120 : ( 124 - 4x ) = 5 + 10
120 : ( 124 - 4x ) = 15
124 - 4x = 120 : 15
124 - 4x = 8
4x = 124 - 8
4x = 116
x = 116 : 4
x = 29
4x = 124 : 8
4x = 29