Answer:
y=
x-4
Step-by-step explanation:
Answer:

Step-by-step explanation:
This question implies the constant rate or proportion of water to mass. Therefore, we can set up the following equation:

There is only one solution
When you graph both equations, they intersect therefore the intersection point tells you there is one solution. If it was infinitely many solutions then it would be the same line. If it was no solution then the graph would show to parallel lines.