Question

what’s x ? And what’s y ?

Answer 1

Step-by-step explanation:

Given

x = 2y

And

-4x + 11y = 15

- 4 * 2y + 11y = 15

-8y + 11y = 15

3y = 15

Therefore y = 5

Now putting y = 5

x = 2* 5

= 10