Answer:
[tex] \huge{ \boxed{ \bold{ \tt{2x + 5}}}}[/tex]
[tex] \text{8x - 4 - 6x + 9}[/tex]
First, combine like terms :
Like terms are those which have the same base.
[tex] \longrightarrow{ \sf{8x - 6x - 4 + 9}}[/tex]
[tex] \longrightarrow{ \sf{2x - 4 + 9}}[/tex]
Remember : The negative and positive integers are always subtracted but posses the sign of the bigger integer.
[tex] \longrightarrow{ \boxed{ \sf{2x + 5}}}[/tex]
And we're done!
Hope I helped!
Best regards! :D
~[tex] \text{TheAnimeGirl}[/tex]