I have to click and drag like terms onto each other to simplify the problem fully.

we have the expression
[tex]8+y-7y[/tex]step 1
Group similar terms
[tex]8+(y-7y)[/tex]step 2
Combine like terms
[tex]\begin{gathered} 8+(-6y) \\ therefore \\ The\text{ answer is} \\ 8-6y \end{gathered}[/tex]