Question

Which of these have one solution?

A. −21 − 8a = −1 + 6(4 − 5a)
B. 33 + 6x = 3(−1 + 5x)
C. 4(m − 1) + 5 = −(1 − 4m)
D. None

Answer 1

I think it’s A or D I think one of them