Question

A number added to -19 is equal to -21.

Answer 1

Answer:

let the number added be 'x'

then,

-19 + x = -21

x = -21 + 19

x = -2

Answer 2

Answer:

-2 is te number

Step-by-step explanation:

x+(-19)= -21

x= -21+19

x= -2