1. **State the problem:** Solve a system of linear equations using the elimination method.
2. **Explain the elimination method:** The elimination method involves adding or subtracting the equations to eliminate one variable, making it easier to solve for the other.
3. **General formula:** For two equations:
$$a_1x + b_1y = c_1$$
$$a_2x + b_2y = c_2$$
Multiply one or both equations by constants so that the coefficients of one variable are opposites.
4. **Example:** Suppose the system is:
$$2x + 3y = 8$$
$$4x - 3y = 2$$
Add the two equations to eliminate $y$:
$$ (2x + 3y) + (4x - 3y) = 8 + 2 $$
$$ 2x + 4x + 3y - 3y = 10 $$
$$ 6x + \cancel{3y - 3y} = 10 $$
$$ 6x = 10 $$
5. **Solve for $x$:**
$$ x = \frac{10}{6} = \frac{5}{3} $$
6. **Substitute $x$ back into one original equation to find $y$:**
Using $2x + 3y = 8$:
$$ 2\left(\frac{5}{3}\right) + 3y = 8 $$
$$ \frac{10}{3} + 3y = 8 $$
$$ 3y = 8 - \frac{10}{3} = \frac{24}{3} - \frac{10}{3} = \frac{14}{3} $$
$$ y = \frac{14}{3} \times \frac{1}{3} = \frac{14}{9} $$
7. **Final answer:**
$$ x = \frac{5}{3}, \quad y = \frac{14}{9} $$
This completes the solution using the elimination method.
Elimination Method F8F5Cf
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