193k views
5 votes
Evaluate the expression. r=7
-9r

User Krvolok
by
8.1k points

1 Answer

2 votes

Answer:

r = 7/10 or 0.7

Explanation:

r = 7 - 9r

0 = 7 - 10r

-7 = -10r

7/10 = r

User Chenta
by
7.7k points