Because like terms you add or subtract together to make it easier to do the problem. just like you do with whole numbers. you add an subtract to make the answer simpler.
Zero property is going to be your answer
3125 !! If I was correct.
9514 1404 393
Answer:
a. y = -5x
Step-by-step explanation:
The different signs of x and y tell you the constant of proportionality will be negative (eliminating choices <em>b</em> and <em>d</em>).
A quick trial of the given values shows that choice <em>c</em> is incorrect, and that choice <em>a</em> is correct.
