Answer the following and justify your answer

$$ If T$($n$)=$ T$($n$/3)+$ T$($n$/4)+4$n then T$($n$)$ is O$(....)$

$$ If T$($n$)=3$T$($n$/3)+5$n then T$($n$)$ is O$(....)$

$$ If T$($n$)=$ T$($n$/3)+$ T$($n$/4)+5$ then T$($n$)$ is O$(....)$

$$ If T$($n$)=$ T$($n$/3)+3$ then T$($n$)$ is O$(....)$

$$ If T$($n$)=$ T$($n$/8)+$ n then T$($n$)$ is O$(....)$

$$ If T$($n$)=$ T$($n$/8)+1$ then T$($n$)$ is O$(....)$

How can something of this form $"$T$($n$/3)+$ T$($n$/4)+4$n$",$ be solved using master theorem? I though master theorem had to have this form aT$($n$/$b$)+$ f$($n$)$