Answer:
13
Explanation:
The given angles are on a straight line and they are supplementary angles which means their sum is 180°
According to the above mentioned information, we can write the following equation to find the value of t:
9t + 3 + 4t - 5 = 180
13t - 2 = 180
- Add 2 to both sides of the equation.
13t = 182
t = 14