Question

20-x2/y-x for x=2 and y=6

Answer 1

`\text{Hello there!}\\\\\text{Plug in the numbers and solve:}\\\\(20-x^2)/(y-x)\\\\(20-2^2)/(6-2)\\\\(20-4)/(6-2)\\\\(16)/(4)\\\\=4\\\\\boxed{\text{Answer: 4}}`

Answer 2

Use substitution to solve the equation:
20-4/4.
4/4=1 so it simplifies to 20-1 which equals 19