Question

simplify
x + x + y + y

Answer 1

The answer is (2x+2y) x+x would be the same as taking x and multiplying it by 2

Answer 2

Answer:

2x + 2y

Step-by-step explanation:

In order to simplify x + x + y + y, you must add (or combine) like terms.

Remember that each variable has a coefficient of 1:

1·x +  1·x +  1·y +  1·y

Therefore, adding the coefficients of x and y results in the algebraic expression:  2x + 2y.