`3264:68:x=12`

`48:x=12`

`x=48:12`

`x=4`

3264:68:x=12

 48:x=12

 x=48:12

 x=4

tick mình

$3264:68:x=12$

$48:x=12$

$x=48:12$

$x=4$

bằng 0 nha bạn

=0 k đi bạn ơi

0 nha bn

[ 78 * 12 - 39 * 24 ] / [ 456 * 68 + 532 / 68] = 0

`x xx 12=456 xx 16`

`x xx 12=7296`

`x=7296:12`

`x=608`

`-------`

`x : (23xx6)=9`

`x :138=9`

`x=9 xx 138`

`x=1242`

a)

`X xx 12 = 456 xx 16`

` X xx 12 = 7296`

`X = 7296:12`

`X=608`

b)

`x:(23xx6)=9`

`x:138=9`

`x=9xx138`

`x=1242`

\(x\times12=456\times16\)

\(x\times12=7296\)

\(x=7296:12\)

\(x=608\)

______________________________

\(x:\left(23\times6\right)=9\)

\(x:138=9\)

\(x=138\times9\)

\(x=1242\)

a,456*65+456*34+456

=456*65+456*34+456*1

=456*(65+34+1)

=456*100

=45600

a) = 456 x ( 65 + 34 + 1 )

     = 456 x 100

     = 45600

a ) 456 x 65 + 456 x 34 + 456

= 456 x 65 + 456 x 34 + 456 + 1

= 456 x ( 65 + 34 + 1 )

= 456 x      100

= 45600

b ) hong bít

Mik làm theo suy nghĩ nên k đúng hay sai cx đc nhen :))

( 123 . 456 - 23 . 16 ) . ( 12 . 9 - 4 . 27)

= ( 56088 - 368) . ( 108 - 108 )

= 55720 . 0

= 0

( 123 x 456 - 23 x 16 ) x ( 12 x 9 -4 x 27 )

=( 123 x 456 - 23 x 16 ) x (108 -108)

=( 123 x 456 - 23 x 16 ) x 0=0

( 123 x 456 - 23 x 16 ) x ( 12 x9 - 4 x 27 )  = ( 123 x 456 - 23 x 16 ) ( x 108 - 108 ) 

                                                               =  557 / 0 

                                                               = 0

Chúc bạn học tốt Kane thân mến ! 

a). 125 x 12 + 12 x 874 + 12

=(125+874+1)x12

=1000x12

=12000

b). 34,64 x 46 + 34,64 x 53 + 34,64

=34,64x(46+53+1)

=34,64x100

=3464

c). 456 x 45 + 456 x 10 – 456 x 55

=456x(45+10-55)

=456x0

=0

a) 125 x12 +12 x 874 + 12 x 1

=12 x (125 + 874 + 1)

=12 x 1000

=12000

b)34,64 x 46 + 34,64 x 53 +34,64 x 1

=34,64 x (46 + 53 + 1)

=34,64 x 100

=3464

c) 456 x 45 +456 x 10 - 456 x 55 

=456 x (45 +10 - 55)

=456 x 0

= 0

a=12000

b=3464

c=0

giải nhanh giúp mình nha

=(78-68) x 456 +90

=10 x 456 + 90

=4560+90

=4650

456 x (78-68) + 90

= 4560 + 90

= 4650

Lời giải:

$2005+y\times 34=5337$

$y\times 34=5337-2005=3332$

$y=3334:34=98$

-----------

$1242:y\times 16=864$

$1242:y=864:16=54$

$y=1242:54=23$