20
Seven.
seven What does n equal
what does seven plus equal
One and twenty-seven over fourty
11/18.
It is: 2/5 plus 4/7 = 34/35
7 + 4/11 = 81/11 or 7.3636..
if you mean x + 4 = 7 then x = 3
20
1 3/5
Two over eight plus four over eight plus one over eight equals seven over eight