135 - 5 ( x + 4 ) = 35
5 ( x + 4 ) = 135 - 35 = 100
5 ( x + 4 ) = 100 : 5 = 20
x = 20 - 4
x = 16
135 - 5 ( x + 4 ) = 35
5 ( x + 4 ) = 135 - 35
5 ( x + 4 ) = 100
x + 4 = 100 : 5
x + 4 = 20
x = 20 - 4
x = 16
135-5(X+4)=35
5(X+4)=135-35=100
5(X+4)=100:5=20
X=20-4=16
AI K MÌNH MÌNH K LẠI
135 - 5(x+4) = 35
135 - 5x + 5.4 = 35
135 - 5x + 20 = 35
135 + 20 - 5x = 35
155 - 5x = 35
5x = 155 - 35
5x = 120
x = 120 : 5
x = 24
135 - 5.(x+4) =35
5.(x+4) =135-35
5.(x+4) =100
x+4 =100:5
x+4 =20
x =20-4
x =16
135 - 5 (x + 4) = 35
5 (x + 4) = 135 - 35
5 (x + 4) = 100
x + 4 = 100 : 5
x + 4 = 20
x = 20 - 4
x = 16
135 - 5 ( x + 4 ) = 35
5 ( x + 4 ) = 135 - 35 = 100
x + 4 = 100 : 5 = 20
x = 20 - 4 = 16
\(135-5\cdot\left(x+4\right)=35\)
=>\(5\cdot\left(x+4\right)=135-35\)
=>\(5\cdot\left(x+4\right)=100\)
=>\(x+4=100:5\)
=>\(x+4=20.\)
=>\(x=20-4=16.\)
Vậy...
135 - 5( x + 4 ) = 35
5( x + 4 ) = 135 - 35
5( x + 4 ) = 100
x + 4 = 100 : 5
x + 4 = 20
x = 20 - 4
x = 16
Vậy x = 16