Question

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Answer 1

elimination would be easiest since you can add the two equations to get

2x + 5y = −3
−15x − 5y = −10
-----------------
-13x + 0y = -13

so

-13x = -13

Answer 2

solve -13x = -13 for x

then use that solution to find y

Answer 3

i would do elimination because there is already an opposite y in the system, so u dont have to create, or turn the coefficient to the same thing ( i am talking about y ).

Answer 4

I would use the elimination method in solving this equation. The reason being, if you were to add these equations, you would notice that the y's cancel each other out. Thus, making it easy to solve for x.
jim_thompson pretty much solved it for you.

Answer 5

thanksss!