For this case we must simplify the following expression:
[tex]13x + 7y-2x + 6a[/tex]
To simplify, we must add similar terms, that is:
[tex]13x-2x + 7y + 6a[/tex]
Remember that different signs are subtracted and the sign of the major is placed. So:
[tex]13x-2x + 7y + 6a = 11x + 7y + 6a[/tex]
Answer:
[tex]11x + 7y + 6a[/tex]
