does the system of equations have one solution, infinite solutions, or no solution?

8x−2y=−4
4x−y=−2

1 answer

We can solve this system of equations using the method of substitution or elimination.

Using substitution:
From the second equation, we can express y in terms of x as y = 4x + 2.
Plugging this into the first equation, we get: 8x - 2(4x + 2) = -4
Simplifying, we have: 8x - 8x - 4 = -4
This equation reduces to: -4 = -4
Since this equation is true, we can conclude that the system of equations has infinitely many solutions.

Using elimination:
We can multiply the second equation by 2 to simplify the process. The system of equations becomes:
8x - 2y = -4
8x - 2y = -4
Since the two equations are identical, we can clearly see that the system has infinitely many solutions.

Therefore, the system of equations has infinitely many solutions.