Question

here are 5 functions
x+y=10
x=10-y
x+y-10=0
y=10+x
2x+2y=20
which functions are the odd one out give a reason for your answer?

Answer 1

Answer:

if the some of a number and it's reciprocal is 2-1

Step-by-step explanation:

g

Answer 2

Answer:

4 and 5

Step-by-step explanation:

if x+y=10 then y=10-x

and 2x+2y+2xy=20