Which expressions are equivalent to x+2y+x+2 ?

Answer = 2(x + y + 1)

if you expand the brackets, the expression would become 2x + 2y + 2.

this is equivalent to x + 2y + x + 2 (if you add both the x’s, the expression would become 2x + 2y +2).


it wouldn’t be 2x + 4y +4 because even if you tried simplifying it by 2, the expression would become x + 2y + 2. this expression is not equivalent to the one in the question.