6xy + xy + 4y
My answer is 6xy + 4y
Is that correct?
no. what happened to the other xy?
Of course, depending on the question, maybe you are right ...
6xy + xy + 4y = 7xy + 4y.
Yes, your answer is correct. To simplify the expression 6xy + xy + 4y, you can combine like terms, which means adding or subtracting terms that have the same variables and exponents.
In this expression, you have two terms with the variable "xy" (6xy and xy) and they can be combined by adding their coefficients, giving you a total of 7xy. The second term, 4y, does not have any like terms, so it remains the same.
Therefore, when you combine these simplified terms, you get the answer 7xy + 4y. However, it seems you made a minor mistake in your answer by writing "6xy + 4y" instead of "7xy + 4y".