X - 11 = 20
3y + 8 = 23
X/2 + 6 = 10
8y = -56
5x - 7 = 13

1. x = 31
2. y = 5 + 23
3.
4. y = -7
5. x = -2 + 13

From the given problem, we can arrive with the equation
x + 4 + y + 3 ≤ 15
Notice, the 4 and 3 added to x and y, respectively. He already made these number of chairs and tables. The inequality sign is ≤ (less than or equal to) since it is stated in the problem that he can only make at most 15 chairs or tables total. Rearranging the equation:
y ≤ -x + 8

From the equation, letting x or y be zero, we have the intercepts as 8. From the choices, the only answer giving that is the second choice.