Question

x + 999 - 123 = 1999

Answer 1

x + 999 - 123 = 1999

x + 999 = 1999 + 123

x + 999 = 2122

          x = 2122 - 999

          x = 1123

Answer 2

X + 999 = 1999 + 123

X+999 = 2122

X= 2122 - 999

X= 1123

Answer 3

x+999=1999+123

x+999=2122

x=2122-999

x=1123

Answer 4

x + 999 - 123 = 1999

x + 999 = 1999 + 123

x + 999 = 2122

x = 2122 - 999

x = 1123

Answer 5

x + 999 - 123 = 1999

=> x + 999 = 1999 + 123

=> x + 999 = 2122

=> x = 2122 - 999

=> x = 1123

Vậy x = 1123

Answer 6

x + 999 - 123 = 1999

\(\Rightarrow\) x - 123 = 1999 - 999

\(\Rightarrow\) x - 123 = 1000

\(\Rightarrow\) x          = 1000 + 123

\(\Rightarrow\) x          = 1123

Vậy x = 1123

Answer 7

x + 999 - 123 = 1999

x + 999 = 1999 + 123

x + 999 = 2122

x = 2122 - 999

x = 1123

Vậy x = 1123

Answer 8

x + 999 - 123 = 1999

x - 123 = 1999- 999

x - 123 = 1000

x  = 1000+ 123

x = 1123

Answer 9

x + 999 - 123 = 1999

x                  = 1999 - 999

x                  = 1000

x                  = 1000 + 123

x                 = 1123

Answer 10

x + 999 - 123 = 1999

x + 999 = 1999 + 123

x + 999 = 2122

x = 2122 - 999

x = 1123

Vậy x = 1123

Máy tính cũng bằng zậy đó nha!

Answer 11

x + 999 - 123 = 1999

x                   = 1999 - 999

x                  = 1000

x                  = 1000 -123

x                 = 877