Question

1,2:x+2,3:x=5

 

Answer 1

Ta có: 1,2:x+2,3:x=5

   <=>x:(1,2+2,3)=5

   <=>x:3,5=5

   <=>x=5x3,5

    <=>x=17,5

vậy x=17,5

Answer 2

k cho mik nha

Answer 3

1,2:x+2,3:x=5

<=> (1,2+2,3):x=5

<=> 3,5:x=5

<=> x=3,5:5

<=>x=0,7

Answer 4

1,2:x+2,3:x=5

( 1,2 + 2,3 ) : x = 5

   3,5           : x = 5

                     x = 3,5 : 5 

                     x = 0,7

Answer 5

[1,2+2,3]:x=5

3,5:x=5

x=5x3,5

x=17,5

Answer 6

1,2:x+2,3:x=5

(1,2+2,3):x= 5

3,5:x          = 5

x                = 3,5:5

x                = 0,7

Answer 7

k mình nha mn

Answer 8

\(1,2:x+2,3:x=5\)

\(\left(1,2+2,3\right):x=5\)

\(3,5:x=5\)

\(x=3,5:5\)

\(x=0,7\)

Vậy x = 0,7

*Học tốt 

Answer 9

1.2 : x + 2.3 : x = 5

( 1.2 + 2.3) ; ( x + x ) = 5

3.5 : 2x = 5

2x = 5 - 3.5

2x = 1.5

x = 1.5 :2

x= 0.75

Vậy x = 0.75