Question

+tìm X
8,75 x X + 1,25 x X= 20

Answer 1

x=2

Answer 2

 (8,75 + 1,25) x X = 20

 10 x X = 20

=> X = 2

Answer 3

8,75 x X + 1,25 x X= 20

X x ( 8,75+ 1,25) = 20

X x 10 = 20

X = 20 : 10

X = 2

Answer 4

=> 10 x X = 20

X = 20 / 10

X = 2

Answer 5

`8,75xx x+1,25 xx x=20`

`(8,75+1,25)xx x=20`

`10xx x=20`

`x=20:10`

`x=2`

Answer 6

`8,75 xx x + 1,25 xx x= 20`

`(8,75+1,25)xx x=20`

`10xx x=20`

`x=20:10`

`x=2`

Answer 7

8,75 x X + 1,25 x X = 20

X x ( 8,75 + 1,25)    = 20

X x 10                     = 20

X                             = 20 : 10

X                             = 2