Is the equation true, false, or open?
-7+9=-9+7
A.True; the expressions are the same for all values of the variables. B.False; the expressions are never the same.
C. Open; there is a variable.
what is the value of the left side? the right side?
are they the same or not?
To determine whether the equation -7 + 9 = -9 + 7 is true, false, or open, we need to solve it. By simplifying both sides of the equation, we can determine if they are equal.
On the left side of the equation:
-7 + 9 = 2
On the right side of the equation:
-9 + 7 = -2
Since 2 is not equal to -2, we can conclude that the equation is false. Therefore, the correct answer is B. False; the expressions are never the same.