C bc the x is where the right angle is and the 2 sides of a right angle is going to be equal
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>
Wdym by animal testing? Like doing experiments on rats as an example?
Answer:
Two haha
Step-by-step explanation:
but thanks for the points (:
