Okay I have these

A+B = 5

4A+ -2/3B = -8

I have a rough idea of what the answer is and my answers are no where near it; this is what I have

Times A+B = 5 by 2

Times 4A + -2/3B = -8 by 3

2A + 2B = 10

12A + -2B = -24

14A = -14

A = -14/14 = -1

is this correct so far?