Answer :
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.
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