Question

Look at the photo for my question

Answer 1

I would say c for the right answer

Answer 2

The correct answer is option C.

Explanation:

To find a substitute for the variable y in the second equation, you need to first find out what y is equivalent to in the first equation: in other words, isolate the variable.
`2y-x=6` ⇒
`2y = x + 6` ⇒
`y = 0.5x + 3`. Since y is equivalent to
`0.5x+3` in the first equation, that means you can use that to replace y in the second equation, so the correct choice is C.