For 15 points: what does a equal? : 5a - 12= -2

A = 2 

You want to add 12 to both sides, which will cross the -12 out, and when you add -2 and 12 together, you get 10. Then, since the "5a" is multiplication,you want to do reverse operations. So you will divide the 10 and 5, and get your answer. Which is 2.

49.6 is what i think it is.