Answer:
6 I think maybe probably sorry if it's incorrect
Answer:
50 Swans or
100 Doves or
100 Hens
or
any combination that accomplish withthe following equation:
2x+y+z=100
where:
x: number of swans and x>0
y: number of doves and y>0
z: number of hens and z>0
Step-by-step explanation:
Answer:
D. 
Step-by-step explanation:
First, move the variable (+ 2y) to the left-hand side and change its sign.

Then, move the constant (+ 7) to the right-hand side and change its sign.

Then, collect the like terms (y - 2y)

Finally, add the numbers (3 + 7). That will get you your final answer.
