Question

tìm số tự nhiên x biết :

a) ( x - 34 ) . 15 = 0

b) 18 . ( x - 16 = 18

Answer 1

a) ( x - 34 ) . 15 = 0

    ( x - 34 )       =0/15

    ( x - 34 )        =0+34

        x              =34

b) 18 . ( x - 16) = 18

    ( x - 16)        =18/18

        x              =1

Answer 2

( x - 34 ) . 15 = 0
x - 34 = 0 : 15
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
x - 34 = 0
x = 0 + 34
x = 34

18 . ( x - 16 ) = 18
x - 16 = 18 : 18
x - 16 = 1
x = 1 + 16
x = 17

Answer 3

a) ( x - 34 ) . 15 = 0

      x - 34 = 0 : 15

      x - 34 = 0 

             x = 0 + 34 

             x = 34

b) 18 . ( x - 16 ) = 18

            x - 16 = 18 : 18 

            x - 16 = 1 

                  x = 1 + 16 

                  x = 17

Answer 4

b)17

a)34

Answer 5

a, x-34=0 : 15

    x-34=0

     x=0+34

     x=34

b, x-16=18:18

    x-16=1

    x=1+16

    x=17

tk cho mk nha

Answer 6

(x-34)=0.15

<=>(x-34)=0

<=>x=0+34

=>x=34

18.(x-16)=18

<=>(x-16)=18:18

<=>x-16=0

<=>x=0+16

<=>x=16

Answer 7

a) ( x - 34 ) . 15 = 0

=> x - 34 = 0

=> x = 34

b) 18( x - 16 ) = 18

=> x - 16 = 1

=> x = 17