Question

When solving the following system using elimination, which of the following will allow you to get opposites?

−4x−15y=−17
−x+5y=−13

Multiply the first equation by -1.


Multiply the first equation by -4.


Multiply the second equation by 4.


Multiply the second equation by -4.

Answer 1

Multiplying the second equation by -4 will give you +4x, which now allows you to eliminate the x variable and solve for y.