Final answer:
To determine if -6 is the solution to the equation 8(0.25x + 5) - 25 = 3, substitute -6 for x and simplify the equation.
Step-by-step explanation:
The correct answer is option 7. To determine if -6 is a solution to the equation, we substitute -6 for x in the equation and simplify:
- Start with the equation: 8(0.25x + 5) - 25 = 3
- Replace x with -6: 8(0.25(-6) + 5) - 25 = 3
- Simplify: 8(-1.5 + 5) - 25 = 3
- Further simplify: 8(3.5) - 25 = 3
- Even more simplify: 28 - 25 = 3
- Final simplification: 3 = 3
Since the final simplification results in a true statement, -6 is indeed a solution to the equation.