5*X + 3*X = 1096 

=> (5+3)*X = 1096

=> 8X = 1096

=>X = 1096 : 8 = 137

      5 x X + 3 x X =1096

<=> X x ( 5 + 3 ) = 1096

<=> X x 8           = 1096

  =>       X           =   1096 : 8

             X           =   137

5x X + 3 x X = 1096

  5x + 3x = 1096

    x.(5+3)  =  1096

    x.  8       =  1096

    x           =  1096 : 8

   x           =  137

5*x+3*x=1096

=> x*(5+3) = 1096

=> x * 8 = 1096

=> x = 1096 : 8

=> x = 137

5*x+3*x=1096

(5+3)*x=1096

8*x=1096

x=1096:8

x=137

vậy x = 137

5*x+3*x=1096

=> x*(5+3) = 1096

=> x * 8 = 1096

=> x = 1096 : 8

=> x = 137

Ai k mk mk k lại!

(5+3)*x=1096

8*x=1096

x=1096:8

x=137

**** mih nhe

137 t mình nhé

a) 5 × x + 3 × x =1096

x × ( 5 + 3 ) = 1096

x × 8 = 1096

x = 1096 :8

x = 137

b) 189 : x - 37 : x=8

( 189 - 37 ) : x = 8

152 : x = 8

x = 152 : 8

x = 19

ủng hộ nha 

a , 5 X x + 3 X x = x X ( 5+3 ) = x X 8 = 1096

=> x = 1096 : 8 = 137.

b , 189 : x - 37 : x = ( 189-37 ) : x = 152 : x = 8

=> x = 152 : 8 = 19.

a)5Xx+3Xx=1096

 xX(5+3)    =1096

 xX8          =1096

         x       =1096:8

         x       =137

b)189:x-37:x=8

  (189-37):x =8

  152:x        =8

          x       =152:8

           x      =19

a. 5 x x + 3 x x = 1096

=> (5+3) x x = 1096

=> 8 x x   = 1096

=>  x        =1096:8

=> x = 137

b. 115:x+37:x=8

=> (115+37):x=8

=> 152:x = 8

=> x = 152:8

=> x = 19

a)5 x X + 3 x X = 1096

X x (5+3)          = 1096

X x 8                = 1096

X                      = 1096 : 8

X                      = 137

b) 115 : x + 37 : X  = 8

( 115 + 37 ) : X       = 8

152 : X                   = 8

 X                          = 152 : 8

X                           = 19

Đáp án là D

\(\dfrac{x+8}{1092}+\dfrac{x+10}{1094}=\dfrac{x+12}{1096}+\dfrac{x+14}{1098}\)

\(\Leftrightarrow\left(\dfrac{x+8}{1092}-1\right)+\left(\dfrac{x+10}{1094}-1\right)\)\(=\left(\dfrac{x+12}{1096}-1\right)+\left(\dfrac{x+14}{1098}-1\right)\)

\(\Leftrightarrow\dfrac{x-1084}{1092}+\dfrac{x-1084}{1094}=\dfrac{x-1084}{1096}+\dfrac{x-1084}{1098}\)

\(\Leftrightarrow\dfrac{x-1084}{1092}+\dfrac{x-1084}{1094}-\dfrac{x-1084}{1096}-\dfrac{x-1084}{1098}=0\)

\(\Leftrightarrow\left(x-1084\right).\left(\dfrac{1}{1092}+\dfrac{1}{1094}-\dfrac{1}{1096}-\dfrac{1}{1098}\right)=0\)

\(\Rightarrow x-1084=0\Rightarrow x=1084\)

Vậy x=1084

  a)  ( 15 x 13 - 21 ) : 2 +108

=(195-21):2+108

=174:2+108

=195

b) (548x13+1096)x43:15:86

=(7124+1096)x43:15:86

=8220x43:15:86

=353460:15:86

=274