Question

X x 1999 - x = 1999 x 1997 + 1999

Ai trả lời thì trình bày nha, ai không trình bày coi như tính sai

Answer 1

X . 1999 - x = 1999 x 1997 + 1999

X . 1999 - X x 1 = 1999 x 1997 + 1999 x 1

X . 1997 = 1999 x 1998

X . 1997 = 3994002

X = 3994002 : 1997

X = 1997001

Answer 2

x . 1999 - x = 1999 . 1997 + 1999

=> x.(1999 - 1) = 1999.(1997 + 1)

=> x.1998 = 1999.1998

=> x = 1999

vậy x = 1999

Dấu . là nhân nha

Answer 3

X x 1999 - x = 1999 x 1997 + 1999

X x 1999 - X x 1 = 1999 x 1997 + 1999 x 1

X x (1998 - 1) = 1999 x (1997 + 1)

X x 1997 = 1999 x 1998

X x 1997 = 3994002

X = 3994002 : 1997

X = 1997001

Answer 4

x . 1999 - x = 1999 . 1997 + 1999

=> x . ( 1999 - 1 ) = 1999 . ( 1997 + 1 )

=> x . 1998 = 1999 . 1998

=> x = 1999

Vậy x = 1999

Answer 5

X . 1999 - x = 1999 x 1997 + 1999

X . 1999 - X x 1 = 1999 x 1997 + 1999 x 1

X . 1997 = 1999 x 1998

X . 1997 = 3994002

X = 3994002 : 1997

X = 1997001

Answer 6

X . 1999 - x = 1999 x 1997 + 1999

X . 1999 - X x 1 = 1999 x 1997 + 1999 x 1

X . 1997 = 1999 x 1998

X . 1997 = 3994002

X = 3994002 : 1997

X = 1997001

Answer 7

X . 1999 - x = 1999 x 1997 + 1999

X . 1999 - X x 1 = 1999 x 1997 + 1999 x 1

X . 1997 = 1999 x 1998

X . 1997 = 3994002

X = 3994002 : 1997

X = 1997001

Answer 8

X . 1999 - x = 1999 x 1997 + 1999

X . 1999 - X x 1 = 1999 x 1997 + 1999 x 1

X . 1997 = 1999 x 1998

X . 1997 = 3994002

X = 3994002 : 1997

X = 1997001

Answer 9

X . 1999 - x = 1999 x 1997 + 1999

X . 1999 - X x 1 = 1999 x 1997 + 1999 x 1

X . 1997 = 1999 x 1998

X . 1997 = 3994002

X = 3994002 : 1997

X = 1997001

Answer 10

x . 1999 - x = 1999 x 1997 + 1999

x . ( 1999 - 1 ) = 1999 . ( 1997 + 1 )

x . 1998 = 1999 . 1998

=> x = 1999

Answer 11

 saibài f  đê

Answer 12

X . 1999 - x = 1999 x 1997 + 1999

X . 1999 - X x 1 = 1999 x 1997 + 1999 x 1

X . 1997 = 1999 x 1998

X . 1997 = 3994002

X = 3994002 : 1997

X = 1997001

nha bn

Answer 13

X.1999-X=1999.1997+1999

X.1999-X.1=1999.1997+1999.1

X.(1999-1)=1999.(1997+1)

X.1998=1999.1998

X.1998=3994002

X=3994002:1998=1999

VẬY X=1999

Answer 14

thách đứa nào tích mik đc 10 k

Answer 15

\(x\times1999-x=1999\times1997+1999\)

\(x\times\left(1999-1\right)=1999.\left(1997+1\right)\)

\(x\times1998=1999\times1998\)

\(x=1999\times1998\div1998\)

\(x=1999\)

Vậy \(x=1999\)