Question 493069
It sounds as if the two angles on the top right are adjacent angles that combine to form a straight line of 180 degrees, they are supplementary.
5x +4  + 3x - 24 = 180
8x -20 = 180
8x = 200
x = 25
5(25) + 4 = `129 degrees
3(25) -24 = 51 degrees
129 degrees + 51 degrees = 180 degrees.
This does check.
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The second part with the y variable is not clear, if you could describe it better we could try to work out an answer.
Cleomenius.