Is -7+9=-9+7 true, false or open
True
The equation -7 + 9 = -9 + 7 is true.
To determine whether the equation -7 + 9 = -9 + 7 is true, false, or open, we need to simplify both sides of the equation and then compare the results.
Starting with the left side: -7 + 9 = 2.
Next, let's simplify the right side: -9 + 7 = -2.
So, the equation can be rewritten as 2 = -2.
Since 2 does not equal -2, the equation -7 + 9 = -9 + 7 is false.
Therefore, the answer to the question is: false.