Which of these strategies would eliminate a variable in the system of equations? 6x + 5y = 1
6r – 5y = 7
Choose all answers that apply:

B) Subtract the bottom equation from the top equation

C) Add the equations.

Step-by-step explanation:

We have to eliminate a variable in the system of equations

6x + 5y = 1 (1) and  

6x - 5y = 7 (2)

Since the y-term on both the equations are the same but opposite in sign, therefore the strategy to eliminate y variable from the system of equations (1) and (2) is to add the equations. (Answer)

Again, the x-terms are the same and with a similar sign, therefore, by subtracting the bottom equation from the top equation we can also eliminate the x-variable. (Answer)

Step-by-step explanation:

a=r

d=q

c=p

b=s

hope this !