Answer:
[tex]x = y - 6.4[/tex]
Steps :
1. Create an equation
If x-4=0 and y-10.4=0, then x - 4 = y - 10.4
[tex]x - 4 = y - 10.4[/tex]
2. Isolate variable X by adding 4 to both sides
[tex]x = y - 6.4[/tex]
3. (Optional) Check Answer by plugging given values into the equation
[tex](4) = (10.4) - 6.4[/tex]
4 = 4 is a true statement