29.3k views
9 votes
9b+10=20b+7. What's B?

User Rashon
by
6.3k points

2 Answers

14 votes

Answer:

3/11

Explanation:

9b+10=20b+7

=> 10 - 7 = 20b - 9b

=> 3 = 11b

=> 11b = 3


= > b = (3)/(11)

User Kalliopi
by
5.6k points
2 votes
9b+10=20b+7
9b-20b=7-10
-11x=-3
x=3/11 or 0.272727...
User Craques
by
5.5k points