5x+3y+2x+4y+3+7x+15

Question

this problem is difucult. help me

Answer 1

5x+3y+2x+4y+3+7x+15 ==>

14x + 7y +18 

Answer 2

First, identify the like-terms in the equation.  

5x, 2x, and 7x are all like-terms.  Therefore, you can add them all, and your answer will be 14x.

Next, identify any other like-terms that you can combine in the expression.  3y and 4y, and because the expression asks you to add them, 3y + 4y = 7y.

And finally you can go ahead and combine the last two terms without exponents attached to them. (15 and 3)

 

Now you can re-write your simplified expression as 14x + 7y + 18