Question 31843
3( w + 5 ) - 7 = 1

first solve brackets on LHS and u get 

3w + 15 - 7 = 1 

3w + 8 = 1 

subtract 8 from both sides and we get

3w = -7 

divide both by 3 and we get

w = - 7/3

Now if you want to  verify you answer ,,,you can put the values of w in the given equation and if you get LHS = RHS,,,this means that you answer is correct..

hope this will help you 

Please feel free to revert back for any further queries.