Question 54685
9(B-4)-7B=5(3B-2) 
9B-36-7B=15B-10
9B-7B-15B=36-10
-13B=26
B=26/-13 
B=-2
PROOF 
9(-2-4)-7(-2)=5(3[-2]-2) 
9(-6)+14=5(-6-2) 
-54+14=5(-8)
-40=-40