Question

Simplify x+x+y+y

I know this looks fairly easy but I keeping typing my answer into maths watch and its wrong apparently so please help

Answer 1

2(x+y)...... ......

Explanation:

... ..........

Answer 2

2x+2y

Explanation:

there are 2 x's so u can make it 1 by putting a 2 in front of it and same with y ... they have to be in alphabetical order and from greatest to least

that's how I was taught