(x-34).15=0

=>x-34=0

x=0+34

x=34

18.(x-16)=18

x-16=18:18

x-16=1

x=1+16

x=17

( x - 34 ) . 15 = 0

x - 34            = 0 ; 15 ( coi x - 34 là thừa số )

x - 34           = 0

x                 = 0 + 34

x                 = 34

18. ( x - 16 ) = 18

       x - 16   =18 : 18

       x - 16   = 1

       x          = 16 + 1

       x          = 17

=>12x=46-34=12

=>x=12/12=1

Vậy x=1

12x+34=46

12x=46-34

12x=12

x=12:12

x=1

\(\left(x-34\right)\cdot15=0\)

\(\Leftrightarrow x-34=0\)

\(\Leftrightarrow x=34\)

a)\(\left(x-34\right).15=0\Leftrightarrow x-34=0\Leftrightarrow x=34\)

b)\(18\left(x-16\right)=18\Leftrightarrow x-16=1\Leftrightarrow x=17\)

a, 34+(21-x)=(3740-30)-(3740+10)

=>34+21-x=(3740-3740)-(30+10)

=>55-x=-40

=>x=55+40=95

b,(-329)+x=-63-(-17)

=>-329+x=-63+17

=>-329+x=-46

=>x=-46+329=283

a) x - 34 = 0 

=> x = 34

b) x - 16 = 1

=> x = 17

a, x= 34

b, x= 17

(x-34) . 15 = 0

x - 34 = 0

x = 34

b) 18 . (x-16) = 18

x - 16 = 1

x = 17      

a) (x-34)x15=0

    x - 34 =0

   x=34

a)x-34.14=0

x-476=0

x=0+476

x=476

b)17.(x-3)=34

x-3=34:17

x-3=2

x=3+2

x=5

Tìm x thuộc N :

a) x - 34 . 14 = 0

         x - 476 = 0

                  x = 0 + 476

                  x = 476

b) 17 . ( x - 3 ) = 34

               x - 3 = 34 : 17

               x - 3 = 2

                    x = 2 + 3

                    x = 5

a) 34 - ( x +50) = 18

<=> x+50 = 34-18

<=> x + 50 = 16

<=>  x = 16- 50

<=> x = - 34

b) 2^{x - 1} = 8

<=> 2^x-1 = 2³

<=> x - 1 = 3

<=> x = 3+1

<=> x = 4

haizzz ghi đề sai may nỏ

b) 2^x-1 = 8

2^x-1 = 2³

=> x - 1 = 3

=>      x = 3 + 1

=>      x = 4