Can someone plz helpp ?Ill give brainliest IF correct !

Answer:
-31 (I think )
Step-by-step explanation:
you place -6 wherever you see x into the equation so it should look like this f(-6)=6(-6)+5 which then should give you f(-6) = -36 +5 then again do the math and you should get f(-6)= -31
I hope im right :/