Question

Tìm x thuộc N biết :

48-3(x+5)=24

Answer 1

3(x+5) = 48 - 24

3(x+5) = 24

3(x+5) = 24 : 8

3(x+5) = 3

x + 5 = 3 : 3

x + 5 = 1

x = 1 - 5

x = -4

Answer 2

48-3(x+5)=24

45-(x+5)=24

45-x=24-5

X=45-19

X=26

Answer 3

48-3(x+5)=24

3(x+5)=48-24

3(x+5)=24

x+5=24/3

x+5=8

x=8-5

x=3

Answer 4

48 - 3( x + 5 ) = 24

3( x + 5 ) = 48 - 24

3( x + 5 ) = 24

x + 5 = 24 : 3

x + 5 = 8

      x = 8 - 5

      x = 3

Answer 5

\(48-3\left(x+5\right)=24\)
  \(\Rightarrow3\left(x+5\right)=48-24\)
  \(\Rightarrow3\left(x+5\right)=24\)
  \(\Rightarrow x+5=24:3\)
  \(\Rightarrow x+5=8\)
  \(\Rightarrow x=8-5\)
  \(\Rightarrow x=3\)

Answer 6

48 - 3(x + 5 ) = 24

3(x + 5 ) = 48 - 24

3( x + 5 ) = 24

x + 5 = 24 : 3

x + 5 = 8

x = 8 - 5

x = 3

Answer 7

  \(48-3\left(x+5\right)=24\)

<=>\(3\left(x+5\right)=48-24\)

<=>\(3\left(x+5\right)=24\)

<=>\(x+5=24:3\)

<=>\(x+5=8\)

<=>\(x=8-5\)<=> \(x=3\)