Question

1-(r+2)=9 (pls help, I'm not the smartest person)

Answer 1

r = -10

Explanation:

1. Distribute

1-(r+2)=9

1-r-2=9

2. Subtract the numbers

1-r-2=9

-1-r=9

3. Rearrange the terms

-1-r=9

-r-1=9

Solution: r = -10