Question

What is the value of the y variable in the solution to the following system of equations?
5x + 4y = 1
4x + 3y = -1
Answer Choices:
-7

7

9

-9
Thank You!

Answer 1

Now you try. I already solved ONE of your first question. Why don't you try this one yourself.

Answer 2

@robtobey can you help please

Answer 3

y = 9.
You should verify the above yourself.

Multiply both sides of the first equation by 4.
Multiply both sides of the second equation by -5.
When you add both equations together, the x terms will subtract out.
Then solve for y.

Answer 4

Thank you!

Answer 5

You're welcome.