I think it's D. The area of A is k2 times the area of rectangle B
9x-5, I guess, not sure, but I'm combining like terms. Hope it's right.
2x + 3(8 - 3x) = 3
2x + 24 -9x = 3
-7x = -21
x = 3
y = 8 - 3x
y = 8 - 3(3)
y = 8-9
y = -1
Check the math:
2(3) + 3(-1) = 6 - 3 = 3