Question

Pls help me answer this it’s either a b c or d explain as well mate

Answer 1

Answer: Add to eliminate x

Explanation:

So if you add to 2 equations you can look at it this way. remove all variables right that leaves you with 10+4=48 and -10-3=-56 right and if you add 10 and -10 you get 0 or 0x so by adding these to equations x is eliminated by adding