Final answer:
The systems of equations presented in the question all have one solution.
Step-by-step explanation:
To determine the number of solutions for each system of equations, we need to solve the systems and analyze the results. Here are the solutions for each system:
- x = y - 3: This equation represents a line with a slope of 1 and a y-intercept of -3. It has one solution.
- 2x - 2y = -6: This equation represents a line with a slope of 1 and a y-intercept of -3. It has one solution.
- 5x + 2y = -7: This equation represents a line with a slope of -5/2 and a y-intercept of -7/2. It has one solution.
- 10x + 4y = -14: This equation represents a line with a slope of -5/2 and a y-intercept of -7/2. It has one solution.
- 3y - 6x = 3: This equation represents a line with a slope of 2 and a y-intercept of 1. It has one solution.
- 4x - 3y = -2: This equation represents a line with a slope of 4/3 and a y-intercept of 2/3. It has one solution.
- 3y - 6x = -3: This equation represents a line with a slope of 2 and a y-intercept of -1. It has one solution.
- 4x - 2y = -2: This equation represents a line with a slope of 2 and a y-intercept of 1. It has one solution.
Therefore, all the systems have one solution.