(x - 47) - 115 = 0

x – 47 = 0 + 115

x - 47 = 115

x = 115 + 47

x = 162

Vậy x = 162

a ) ( x - 47 ) - 115 =  0

    ( x - 47 )          = 0 + 115 

    ( x - 47 )          = 115

      x                   = 115 + 47

      x                   = 162

b ) 315 + ( 146 - x ) = 401

               ( 146 - x ) = 401 - 315

               (  146 - x ) = 86

                          x    = 146 - 86 

                          x    = 60

 Duyệt nha

a)  (x-47)-115=0=>x-47=115=>x=162

b)315+(146-x)=401=>146-x=86=>x=60

a,(x-47)-115=0

x-47=115

x=162

b,315+(146-x)=401

315+146-x=401

461-x=401

x=60

a) (x - 47) - 115 = 0

=> x - 47 = 0 + 115

=> x - 47 = 115

=> x = 115 + 47

=> x = 162

Vậy x = 162

b) 315 + (146 - x) = 401

=> 146 - x = 401 - 315

=> 146 - x = 86

=> x = 146 - 86

=> x = 60

Vậy x = 60

a, ( x - 47 ) - 115 = 0

x - 47 = 115

x = 162

b, 315 + ( 146 - x ) = 401

315 + 146 - x = 401

461 - x = 401

x = 60

a/ => x - 47 = 115 => x = 162

b/ => 146 - x = 86 => x = 60

a) ( x-47) - 115=0

x - 47 = 0 + 115 = 115

x= 115 + 47 = 162

b) 315 + ( 146 -x ) = 401

146 - x = 401 - 315 = 86

x= 146 -86 =60

a) \(\left(x-47\right)-115=0\)

\(x-47=115\)

\(x=115+47\)

\(x=162\)

b)\(315+\left(146-x\right)=401\)

\(146-x=401-315\)

\(146-x=56\)

\(x=146-56\)

\(x=90\)

a) \(\left(x-47\right)-115=0\)

\(x-47=0+115\)

\(x-47=115\)

\(x=115-47\)

\(x=68\)

b)\(315+\left(146-x\right)=401\)

\(146-x=401-315\)

\(146-x=86\)

\(x=146-86\)

\(x=60\)

a)(x-47)-115=0

x-47=0+115

x=115+47

x=162

a) (x - 47) - 115 = 0

\(\Rightarrow\)x - 47 - 115 = 0

\(\Rightarrow\)x - 162 = 0

\(\Rightarrow\)x = 0 + 162 = 162

Vậy giá trị của x là 162

b) 315 + (146 - x) = 401

\(\Rightarrow\)146 - x = 401 - 315 = 86

\(\Rightarrow\)x = 146 - 86 = 60

Vậy giá trị của x là 60

a) (x - 47) - 115 = 0

              x - 47 = 0 + 115

               x - 47 = 115

                      x= 115 + 47

                      x = 162

b) 315 + (146 - x) = 401

              146 - x = 401 - 315 

               146 - x = 86

                        x = 146 - 86 

                        x = 60

a, x-47= 115 b, 146- x =401 -135= 86

x= 115=47 = 162 x=146- 86=60

a) \(\left(x-47\right)-115=0\)\(\Leftrightarrow x-47=115\)\(\Leftrightarrow x=47+115=162\).
b) \(315+\left(146-x\right)=401\)\(\Leftrightarrow146-x=401-315\)\(\Leftrightarrow146-x=86\)\(\Leftrightarrow x=146-86\)\(\Leftrightarrow x=60\).

a) Ta có: \(\left(x-47\right)-115=0\)

\(\Rightarrow x=115+47\)

\(\Rightarrow x=162\)

Vậy \(x=162\)

b) Ta có: \(315+\left(146-x\right)=401\)

\(\Rightarrow-x=401-315-146\)

\(\Rightarrow-x=-60\)

\(\Rightarrow x=60\)

Vậy \(x=60\)