Solve each given equation and show your work. Tell whether it has one solution, an infinite number of solutions, or no solutions, and identify each equation as an identity, a contradiction, or neither.

A6X plus 4X -6 = 24+ 9X

B25 - 4X = 15 - 3X +10 - X

C4X +8 = 2X +7+ 2X -20