Question

Find x + y given the system:
2x + 2y = 8
x - y = 1


A. 4


B. 1


C. -3


D. -12

Answer 1

What did we do last time to solve a given system of equations?

In this new problem: Multiply every term in the 2nd equation by 2.

Then add the first equation and the re-written second equation together. What next?

Answer 2

idk how to do that?

Answer 3

type the 2nd equation here, please:

Answer 4

x - y = 1

Answer 5

thanks. Now, please multiply each term of that equation by 2. Type your result here, please.

Answer 6

2x *2y =4xy