Question 111222
3A+9B=8B-9
3A=8B-9B-9
3A=-B-9
A=-B/3-9/3
A=-B/3-3 ANSWR.
5A-10B=-4A-9B+5
5A+4A=10B-9B+5
9A=B+5
A=B/9+5/9