Question

−13= 9 r ​ +8 what is r

Answer 1

Step-by-step explanation:

-13=9r+8

9r=13+8

9r=21

r=21/9

r=2.333.......

Answer 2

Answer:

$- 13 = 9r + 8 \\ - 13 - 8 = 9r \\ - 21 = 9r \\ - 21 \div 9 = r \\ 2.33333 = 9$