Question

Select the best possible first step to solving the system by first eliminating the y variable.

x + 8y = –4
2x – 4y = –13

Multiply the first equation by 2.

Multiply the second equation by 2.

Multiply the first equation by –2.

Multiply the second equation by –2.

Answer 1

Multiply the second equation by 2

Answer 2

Can you explain that?

Answer 3

Yes multiplying second eq by 2 we will find
4x – 8y = –26 adding it in the first eq we can eliminate y


x + 8y = –4
4x – 8y = –26
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5x =-30
x=-30/5
x=-6

Answer 4

Thank you soooo much! :0

Answer 5

You are most welcome....

Answer 6

Haha! :-)