Answer:
(3)
and
![y = 51](https://img.qammunity.org/2022/formulas/mathematics/high-school/hesmmbccri0rhnsfxqab4qe2ia6p4mdc7a.png)
(4)
![x = 6](https://img.qammunity.org/2022/formulas/mathematics/college/wv8bfuw9fk5nriahdjmvxfctqsjqi7024j.png)
Explanation:
Question 3
Required
Solve for x and y
We have:
--- angle on a straight line
Collect like terms
![16x + 10x = 180 + 18 - 3](https://img.qammunity.org/2022/formulas/mathematics/college/uv5m4jto938iv471iw8mqecu0bc2eazamn.png)
![26x = 195](https://img.qammunity.org/2022/formulas/mathematics/college/s74099ogjprh6wc4a95iqnu7pv9vlasndo.png)
Solve for x
![x = 195/26](https://img.qammunity.org/2022/formulas/mathematics/college/hgvkt14papdzm2446mczvkbsoiscestbos.png)
![x = 7.5](https://img.qammunity.org/2022/formulas/mathematics/college/xf1kjtjezezjjbzfmzs0hsen61v1g0b0ku.png)
Also:
---- opposite angles
So, we have:
![16 * 7.5 - 18 = 2y](https://img.qammunity.org/2022/formulas/mathematics/college/4fj2x6lumxla5rb10hmkq19d01396k92eo.png)
![120 - 18 = 2y](https://img.qammunity.org/2022/formulas/mathematics/college/4q8llhe8woc4rb8b7nm0hmarqsu0td6dab.png)
![102 = 2y](https://img.qammunity.org/2022/formulas/mathematics/college/udhitjvqr0vrc6vvbwkhjklv0cg4j4gqv9.png)
Divide by 2
![51 = y](https://img.qammunity.org/2022/formulas/mathematics/college/eklqoyfdiczafrsqunnktb7nwyfa7kqies.png)
![y = 51](https://img.qammunity.org/2022/formulas/mathematics/high-school/hesmmbccri0rhnsfxqab4qe2ia6p4mdc7a.png)
Question 4:
Required
Solve for x
We have:
---- angle at right-angled
Collect like terms
![11x + 5x = 90 +2 + 4](https://img.qammunity.org/2022/formulas/mathematics/college/d0l4zhs9jzwbthdy82rjyj7j21vmef5coi.png)
![16x = 96](https://img.qammunity.org/2022/formulas/mathematics/high-school/3dgf0de3i52deiuopqhbia2hrb0d9n9fal.png)
Divide by 16
![x = 6](https://img.qammunity.org/2022/formulas/mathematics/college/wv8bfuw9fk5nriahdjmvxfctqsjqi7024j.png)