Instead of explaining your work with words - you should use mathematical statements (much shorter - that is why mathematics was invented)
The way I went about doing the second problem
d/6 + 1/7 =2 actually was by dividing out ( you multiplied both sides of the equation by 42)with a LCD. Which was 42. I then came up with
7d+6 = 84. So next I need get the variables on one side. (isolate variables)
7d+6 - 6= 84-6 So I need to subract 6 from the original 6
7d = 78 which cancels it out and also - 6 from 84 leaving me with 78.
d = 78/7 Next I want to isolate the variable "d" so I divided both sides by 7. My answer came out to 11.14.
Check
7d+6 = 7 * (78/7) + 6 = 78 + 6 = 84....Checks - so the answer is most probaly correct
I have no idea if this is the right answer, but I really don't think it is. It just does not seem right to me. By the time I finally finished trying to do this problem my mind is so discumbobulated I can't even begin to figure out if I am even close to having the right answer. So I really don't even know where I am making mistakes. I feel pretty sure that that answer is not to this problem, but it could be and I don't trust myself. I am thinking that is not the case though! :? :? Any input would be a huge help. THANK YOU!