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. (5 points each) a) 2 + 3 − 6 = 10 + 4 b) 17 + 5 = 23 + 4 − 6 + c) 7 + 4 = 5 + 8 + 2 − 10