Let's solve the system of equations:

1. \( y = -6 - 7 \)
2. \( 4x - y = 3 \)

### Step 1: Simplify the first equation
The first equation can be simplified:

\[
y = -13
\]

### Step 2: Substitute \( y = -13 \) into the second equation
Substitute \( y = -13 \) into the second equation \( 4x - y = 3 \):

\[
4x - (-13) = 3
\]

\[
4x + 13 = 3
\]

### Step 3: Solve for \( x \)
Isolate \( x \) by subtracting 13 from both sides:

\[
4x = 3 - 13
\]

\[
4x = -10
\]

Now, divide by 4:

\[
x = -\frac{10}{4} = -\frac{5}{2}
\]

### Final Answer:
The solution to the system is \( x = -\frac{5}{2} \) and \( y = -13 \).

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Would you like more details or have any questions? Here are some related problems:

1. Solve the system: \( y = 2x + 5 \) and \( 3x - y = 7 \).
2. Solve the system: \( y = 4x - 9 \) and \( 2x + y = 11 \).
3. Solve for \( x \) and \( y \): \( y = 3x + 1 \) and \( 5x - y = 14 \).
4. Find the intersection point of the lines \( y = -x + 2 \) and \( y = 2x - 4 \).
5. Solve for \( x \) and \( y \): \( y = -2x + 3 \) and \( 4x + 2y = 8 \).

**Tip:** When solving systems of equations, substitution or elimination methods are commonly used to find the solution.

Learn how to solve the system of equations -6 - 7 = 4x and 4x - y = 3 step-by-step with detailed explanations. This problem involves solving linear equations using the substitution method. Suitable for high school students.

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