4x + 8y = 16

4x-8y = 0

[2, 1]

Step-by-step explanation:

By the Elimination method, you are left with 8x = 16 because - 8 and 8 are what are called Additive Inverses, meaning they result in 0⃣; x = 2, plug 2⃣ back into both equations, and you will see that y = 1, making the solution above.