1. **State the problem:** Solve the simultaneous equations using the elimination method:
$$2x + 3y = 13$$
$$3x + 2y = 12$$
2. **Elimination method formula:** We aim to eliminate one variable by making the coefficients of either $x$ or $y$ the same (or opposites) in both equations, then subtract or add the equations.
3. **Eliminate $y$:** Multiply the first equation by 2 and the second by 3 to make the coefficients of $y$ equal:
$$\text{Eq1}: 2(2x + 3y) = 2(13) \Rightarrow 4x + 6y = 26$$
$$\text{Eq2}: 3(3x + 2y) = 3(12) \Rightarrow 9x + 6y = 36$$
4. **Subtract Eq1 from Eq2 to eliminate $y$:**
$$ (9x + 6y) - (4x + 6y) = 36 - 26 $$
$$ 9x - \cancel{6y} - 4x - \cancel{6y} = 10 $$
$$ 5x = 10 $$
5. **Solve for $x$:**
$$ x = \frac{10}{5} = 2 $$
6. **Substitute $x=2$ into the first original equation to find $y$:**
$$ 2(2) + 3y = 13 $$
$$ 4 + 3y = 13 $$
$$ 3y = 13 - 4 = 9 $$
$$ y = \frac{9}{3} = 3 $$
7. **Final solution:**
$$ x = 2, \quad y = 3 $$
This means the solution to the system is the point $(2,3)$ where both equations intersect.
Simultaneous Equations 8Cbef6
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.