Respuesta :

subtract 3 from both sides to get 3+z=-19 3+z-3=-19-3 z = -22 So it's only true when z = -22. This means that it's neither 100% true nor 100% false. So it's an open statement or sentence

The value of the given equation i.e. 3+z =-19 is open.

Given that,

  • The equation is 3 + z = -19.
  • We need to solve the given equation.

Based on the above information, the calculation is as follows:

3 + z = -19

z = -19 - 3

z = -22

It should be true when z = -22

It can't be false.

So, it an open equation.

Therefore we can conclude that the value of the given equation i.e. 3+z =-19 is open.

Learn more: brainly.com/question/24169758