Answer:
0
Explanation:
3x+13 = 3(x+6)+1
3x+13=3x+19
13=19
This is never true so there are 0 solutions
If the x's didnt cancel out, you could use the fundemental theorom of algebra, which states that in the simplest form(nothing will cancel out anymore), the highest degree(highest power) on a variable is the number of solutions.