Which of these strategies would eliminate a variable in the system of equations? \begin{cases} -7x + 2y = 5 3x - 5y = -5 \end{cases}
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−7x+2y=5
3x−5y=−5
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Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
Add the equations.

(Choice B)
B
Multiply the top equation by 333, multiply the bottom equation by 777, then add the equations.

(Choice C)
C
Multiply the top equation by 555, multiply the bottom equation by 222, then add the equations.