Answer:
[tex]\large \boxed{9t-12}[/tex]
Step-by-step explanation:
[tex]4(7+t)+5(t-8)[/tex]
[tex]\sf Expand \ brackets.[/tex]
[tex]4(7)+4(t)+5(t)+5(-8)[/tex]
[tex]28+4t+5t+-40[/tex]
[tex]\sf Combine \ like \ terms.[/tex]
[tex]28+9t+-40[/tex]
[tex]9t+-12[/tex]