14= 3k-4
_ less than _ = -
3* k simplified= 3k
i dont have much time to go through all the work but i can tell you that since its a 90 degree angle, your equation would be 90=15x-2+7x+4. Once you get the value of X plug that into each of the equations. For example if your x value was 2 you would do 15(2)-2. Thats just an example.
The answer will be 210 seconds. 60 X 3 = 180+ 30= 210
