I'll demonstrate number 1: 6-b=5b+30 +b +b (add b to both sides, so it cancels out the -b) 6=6b+30 -30 -30 (subtract 30 on each side) -24=6b (now, divide each side by 6, to get b by itself) -24/6=6b/6 -4=b So the answer is b=-4. I hoped I helped you understand the concept a little more clearly. Good luck.
