x + 58 = 64 + 58

       x + 58 = 122

                  x = 122 – 58

                  x = 64

a) \(x-452=77+48\)

\(=>x-452=125\)

\(=>x=125+452\)

\(=>x=577\)

____

b) \(x+58=64+58\)

\(=>x+58=122\)

\(=>x=122-58\)

\(=>x=64\)

_____

c) \(x-1-2-3-4=0\)

\(=>x-10=0\)

\(=>x=0+10\)

\(=>x=10\)

x+58=122

x=122-58=64

nha bạn hiền

x - 452 = 77 + 48

x-452=125

x=452+125

x=577

x + 58 = 64 + 58

x+58=122

x=122-58

x=64

x - 1 - 2 - 3 - 4 = 0

x-(1+2+3+4)=0

x-10=0

x=10+0

x=10

x=577

x= 64

x= 10

a) x - 452 = 77 + 48

x-452=125

x=577

b) x+58 = 64 + 58

x+58=122

x=64

c)x - 1 - 2 - 3 - 4 = 0

x-1-2-3=4

x-1-2=7

x-1=9

x=10

 a,577

 b,64

c,10

a) x - 452 = 77 + 48

=> x - 452 = 125

=> x = 125 + 452

=> x = 577

Vậy x = 577

b) x + 58 = 64 + 58

=> x + 58 - 58 = 64 + 58 -58

=> x =64

Vậy x = 64

c)x - 2 - 2 - 3 - 4 = 0

=> x - ( 1 + 2 + 3 + 4 ) = 0

=> x - 10 = 0

=> x =10

Vậy x =10

B1 :

a/ x - 452 = 77 + 48

    x          = 125 + 452

    x         = 577

b/ x + 58 = 64 + 58

    x         = 122 - 58

    x         = 64

c/x - 1 – 2 – 3 – 4 = 0

   x                        = 0 + 4 + 3 + 2 +1

   x                        = 10

CHÚC HT

\(a)x-452=77+48\)

   \(x-452=125\)

  \(x\)            \(=125+452\)

  \(x\)            \(=577\)

\(b)x+58=64+58\)

    \(x+58=122\)

   \(x\)         \(=112-58\)

   \(x\)         \(=64\)

\(c)x-1-2-3-4=0\)

 \(x-\left(1+2+3+4\right)=0\)

                                \(x-10=0\)

                                            \(x=10+0\)

                                              \(x=10\)

x - 452 = 77 + 48

x - 452 = 125

        x = 125 + 452

        x = 577

x + 58 = 64 + 58

x + 58 = 122

        x = 122 - 58

        x = 64

x - 1 - 2 - 3 - 4 = 0

                   x = 0 + 1 + 2 + 3 + 4

                  x = 10

a) x-452=77+48

x-452=125

x=125+452

x=577

Vay x=577

b)x+58=64+58

x+58=122

x=122-58

x=64

Vay x=64

c)x-1-2-3-4=0

x=0+4+3+2+1

x=10

Vay x=10

    x - 452 = 77 + 48 

=) x - 452 = 125

=) x   = 125 + 452 

=) x   = 577

    x + 58 = 64 + 58 

=) x + 58 = 122

=) x   = 64

    x - 1 - 2 - 3 - 4 = 0

=) x - 1 - 2 - 3 = 4

=) x - 1 - 2 = 4 + 3 

=) x - 1 - 2 = 7 

=) x - 1 = 7 + 2

=) x - 1 = 9 

=) x = 9 + 1 

=) x = 10 

:a) x-452=77+48=126 =>x=52+126=578 

b) x+58=64+58 =>x=64 (Vì cả 2 vế cùng có 58) 

c)x-1-2-3-4=0 =>x=1+2+3+4=10 

a)x-452=77+48

<=>x-452=125

<=>x=125+452=577

b)x+58=64+58

<=>x=64+58-58

<=>x=64

c)x-1-2-3-4=0

<=>x-10=0

<=>x=10

a) x = 577

b) x = 64

c) x = 10

a. x - 452 =125

 x = 125+452 

 x =577

b. x+58 = 64 +58 => x = 64

c. x-1-2-3-4=0

x = 0+4+3+2+1

x = 10