3a - 1 1/2 = -5 1/4

Answer 1

Cross multiply and solve for a.

Answer 2

I don't know how to do the problem.

Answer 3

Oops. Sorry.

3a - 1 1/2 = -5 1/4

3a - 1 1/2 + 1 1/2 = -5 1/4 + 1 1/2

3a = 5 1/4 + 1 1/2

3a = 6 3/4

a = (6 3/4) / 3

a = 2 1/4