1. **Problem Statement:** Solve the system of linear equations:
$$8x + 5y = 9$$
$$3x + 2y = 4$$
2. **Method:** We will use the method of elimination to find $x$ and $y$.
3. **Step 1: Multiply equations to align coefficients of $y$:**
Multiply the first equation by 2 and the second by 5 to make the coefficients of $y$ equal:
$$2(8x + 5y) = 2(9) \Rightarrow 16x + 10y = 18$$
$$5(3x + 2y) = 5(4) \Rightarrow 15x + 10y = 20$$
4. **Step 2: Subtract the second new equation from the first:**
$$ (16x + 10y) - (15x + 10y) = 18 - 20 $$
$$ 16x - 15x + \cancel{10y} - \cancel{10y} = -2 $$
$$ x = -2 $$
5. **Step 3: Substitute $x = -2$ into one of the original equations to find $y$:**
Using the second original equation:
$$3(-2) + 2y = 4$$
$$-6 + 2y = 4$$
$$2y = 4 + 6$$
$$2y = 10$$
$$\cancel{2}y = \cancel{2}5$$
$$y = 5$$
6. **Final answer:**
$$x = -2, \quad y = 5$$
This means the solution to the system is the point $(-2, 5)$ where both lines intersect.
Linear Equations 54Dddb
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