It d over 3 u 2 text me if you need more help hope this helps u a little bit more.
Answer: (x, y) = (10, 10)
Since x = y, replacing y with x in 6x - 3y = 30 we have 6x - 3x = 3x = 30, so x = 30/3 = 10. Then y = x = 10, so the solution is (10, 10).
i hope this helps! :D
C. 0.0806 that’s the write answer to your equation I think