1. **State the problem:** Solve the system of equations
$$\begin{cases} x - 2y = 0 \\ y = 2x - 3 \end{cases}$$
2. **Use substitution:** From the first equation, express $x$ in terms of $y$:
$$x = 2y$$
3. **Substitute into the second equation:** Replace $x$ with $2y$:
$$y = 2(2y) - 3$$
4. **Simplify:**
$$y = 4y - 3$$
5. **Isolate $y$:**
$$y - 4y = -3$$
$$\cancel{y} - 4\cancel{y} = -3$$
$$-3y = -3$$
6. **Divide both sides by $-3$:**
$$\frac{-3y}{\cancel{-3}} = \frac{-3}{\cancel{-3}}$$
$$y = 1$$
7. **Find $x$ using $x = 2y$:**
$$x = 2(1) = 2$$
8. **Final solution:**
$$\boxed{(x, y) = (2, 1)}$$
This means the two lines intersect at the point $(2,1)$.
---
"slug": "linear system",
"subject": "algebra",
"desmos": {
"latex": "x - 2y = 0, y = 2x - 3",
"features": {
"intercepts": true,
"extrema": true
}
},
"q_count": 4
Linear System 2F9B5A
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