Question

If you wanted to eliminate the x variable by adding the two equations in the following system, what could be your first step?
2x − y = 6
4x − 4y = 10

Add the two equations together.

Multiply the first equation by −4.

Multiply the first equation by 2.

Multiply the first equation by −2.

Answer 1

c

Answer 2

You multiply by 2 because you then get 4x

Answer 3

last three steps u can apply

Answer 4

and it cancels out

Answer 5

if u multiply eq 1 by -4 and add the two..u can gett x
check it out for the last two cases u can still get one of the variable

Answer 6

Thank You!!

Answer 7

Tennistar can you help me please