Which of the following equations has an infinite number of solutions?
A: 3(2x+1)= 2(1+3x)-1
B: 3(2x+1)=2(3+2x)-3
C: 3(2x-1)=2(1+3x)-1
D: 3(2x+1)=2(1+3x)+1

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno nina made two errors in the proof. identify and correct the errors.