1. **State the problem:** Solve the system of linear equations:
$$x = 16 - 4y$$
$$3x + 4y = 8$$
2. **Use substitution method:** Since $x$ is already expressed in terms of $y$ from the first equation, substitute $x = 16 - 4y$ into the second equation.
3. **Substitute and simplify:**
$$3(16 - 4y) + 4y = 8$$
$$48 - 12y + 4y = 8$$
$$48 - 8y = 8$$
4. **Isolate $y$:**
$$48 - 8y = 8$$
Subtract 48 from both sides:
$$\cancel{48} - 8y = 8 - \cancel{48}$$
$$-8y = -40$$
Divide both sides by $-8$:
$$\frac{-8y}{\cancel{-8}} = \frac{-40}{\cancel{-8}}$$
$$y = 5$$
5. **Find $x$ using $y=5$:**
$$x = 16 - 4(5) = 16 - 20 = -4$$
6. **Final answer:**
$$x = -4, \quad y = 5$$
This means the solution to the system is the point $(-4, 5)$ where both lines intersect.
Linear System 83C183
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