6 repeating so the answer would be 31.666666..... or round it up 31.666666667
The identity has been confirmed. Note how I only altered the left hand side to transform it into the right hand side. In the second line, I used the identity
X/2 + 3 > 9
Subtract 3 from both sides
x/2 > 6
Multiply 2 on both sides
Final Answer: x > 12
Multiply them by distribution:
-18x² + 6xy + 72xy - 24y²
Combine like terms:
-18x² + 78xy - 24y²
The first choice is correct.