1. **State the problem:** We have a linear pair of angles where one angle is 12 degrees less than half the other angle. We need to find both angles.
2. **Recall the property of a linear pair:** The sum of the two angles in a linear pair is 180 degrees.
3. **Define variables:** Let the larger angle be $x$ degrees.
4. **Express the other angle:** The other angle is $\frac{x}{2} - 12$ degrees.
5. **Set up the equation using the linear pair property:**
$$x + \left(\frac{x}{2} - 12\right) = 180$$
6. **Simplify the equation:**
$$x + \frac{x}{2} - 12 = 180$$
$$\Rightarrow \frac{2x}{2} + \frac{x}{2} - 12 = 180$$
$$\Rightarrow \frac{3x}{2} - 12 = 180$$
7. **Isolate the term with $x$:**
$$\frac{3x}{2} = 180 + 12$$
$$\frac{3x}{2} = 192$$
8. **Multiply both sides by 2 to clear the denominator:**
$$\cancel{\frac{3x}{\cancel{2}}} \times 2 = 192 \times 2$$
$$3x = 384$$
9. **Divide both sides by 3 to solve for $x$:**
$$x = \frac{384}{3}$$
$$x = 128$$
10. **Find the other angle:**
$$\frac{x}{2} - 12 = \frac{128}{2} - 12 = 64 - 12 = 52$$
11. **Check the sum:**
$$128 + 52 = 180$$ which confirms the solution.
**Final answer:** The two angles are $128^\circ$ and $52^\circ$.
Linear Pair Angles A9E409
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