Question

To solve the following system of equations by elimination, which operation would you perform first?

234x+65y=219
1225x+65y=-427

F. Addition

G. Subtraction

H. Multiplication

I. Division

Answer 1

I believe it is G. I'm not good at explaining why I'm think that. But I hope it helps you.

Answer 2

answer is G. Subtraction

234x+65y=219
1225x+65y=-427
----------------------subtract

-991x = 646 to eliminate y and solve for x