My last week tutorial was about how do i turn questions into variable equations. The question I wanted to convert was Charlie and Evelyn sold a combine total of 78 sodas. Charlie sold 18 more than twice of what Evelyn sold.
To solve it I had to change Charlie and Evelyn to variable equation. So Evelyn was easy I knew nothing about her so she is just x and Charlie on the other hand was pretty difficult. He was 18 more twice Evelyn. He turned out to be x(2)+18. Together it was (2x)(2)+18=78. So I did my math and x=15. I checked I added 15 and 15 to get 30, then I multiplied 2 by 30 to get 60 , finally to add 18 to 60 as a result of 7. Finally that's how I my answere.