To solve the system of equations using the substitution method, let’s first analyze the given equations:
- \(2x + 3y = 4\) (Equation 1)
- \(-4x - 6y = -8\) (Equation 2)
Next, notice that Equation 2 can be simplified. By dividing the entire equation by -2, we get:
\[ 2x + 3y = 4 \]
Thus, we see that both equations represent the same line. Therefore, they are dependent, meaning there are infinite solutions.
Hence, the correct answer is:
infinite solutions