Question

I’m not sure if it’s 1 but I know it’s not 3 and if you answer please Give an explanation !

Answer 1

The answer is indeed 1.

Explanation:

You are going to plug in the y values, and then plug in the choices for x to see which makes the statement true.

`x + y = 6 - x \\ x + 4 = 6 - x \\ \\ (4) + 4 = 6 - (4) \: is \: 8 = 2\: \: \: |no| \\ \\ (2) + 4 = 6 - (2) \: is \: 6 = 4 \: \: \: |no| \\ \\ (3) + 4 = 6 - (3) \: is \: 7 = 3 \: \: \: |no| \\ \\ (1) + 4 = 6 - (1) \: is \: 5 = 5 \: \: \: |yes|`