Algebra:

10 = c/3 - 4 + 5/6

Step-by-step explanation:

The given equation is

10 = c/3 - 4 + 5/6

First step is to cross multiply the left hand side of the equation and the right hand side of the equation by 3. It becomes

10*3 = c/3 * 3 - 4*3 + 5/6*3

30 = c - 12 + 15/6

Second step is to cross multiply the left hand side of the equation and the right hand side of the equation by 6. It becomes

30*6 = c*6 - 12*6 + 15/6 * 6

180 = 6c - 72 + 15

180 = 6c - 57

Add 57 to both sides. It becomes

180 + 57 = 6c - 57 + 57

237 = 6c

c = 237/6 = 39.5