Answer:
[tex]-14[/tex]
Step-by-step explanation:
All we have to do here is substitute [tex]a=5[/tex] and [tex]b=-3[/tex] into [tex]3b-a[/tex]. Doing so, we get:
[tex]3b-a[/tex]
[tex]=3*(-3)-5[/tex] (Substitute [tex]a=5[/tex] and [tex]b=-3[/tex] into [tex]3b-a[/tex])
[tex]=-9-5\\=-14[/tex](Simplify)
Hope this helps!