Answer:
<h3>Add to eliminate y.</h3>
Step-by-step explanation:
Given the equations
-9x + y = 71.... 1
-x - y = -1 .... 2
Using elimination method we can eliminate y first since they have the same coefficient.
To do that we will need to add up both equations. We are adding because the coefficient of y in both equations has different signs. If they have the same sign, we would have subtracted.
<em>Hence the correct option in this case is to add to eliminate y.</em>
180=9×w
length=9
width=20
perimeter=58
Answer:
See below.
Step-by-step explanation:
The slope of a line is the rate of change.
A positive slope slants upward and to the right, while a negative slope slants downward and to the right.
