To determine which of the given equations has a solution of -1/2, we can substitute -1/2 into each equation and check if it satisfies the equation.
-
Equation:
- Substitute
:
- Substitute
-
Equation:
- Substitute
:
- Substitute
-
Equation:
- Substitute
:
- Substitute
-
Equation:
- Substitute
:
- Substitute
The equation that has a solution of -1/2 is: