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.
a. Hint: Remember to group like terms.
(a) 6x + 4x - 6 = 24 + 9x
(b) 25 - 4x =15 - 3x + 10 - x
(c) 4x + 8 =2x + 7 + 2x - 20