- ( 6w - 1 ) + 3 ( w - 4 )

So to solve your question, we can use this: 




So then 



If we use the above formulas then:


And for


We will get:



And to simplify


Since we already calculated the individual parts, not put them together, so:



Now we have to add the like terms which are -6w and 3w. And also 1 and -12.

Rearranging the terms, we get:



And 

And also 

So combining that, we get:



Which is your final answer :)