Question

(7x2 - 6xy +12y = 108, 2)7y? = 18.6 85x2XY +22.y?2)= 3,+Y хx + y = 2.​

Answer 1

7х2-6ху+12у=108

7х-6х-у+12у=108/2

х-11у=54

х-11у=54

Answer 2

I'm sorry, but it seems like the equations you provided are not clear. There are several variables and symbols that are not properly defined, making it difficult to understand the equations and provide a meaningful solution.

If you could clarify the equations by properly defining the variables and symbols, I would be happy to help you solve them.