Question

Solve for
r

-48 - r = -39

Answer 1

• 
  `r=-9`

Explanation:

`-48 - r = -39`

`-48+-r=-39`

`-r-48=-39`

`-r-48+48=-39+48`

`-r=9`

`\cfrac{-r}{-1}=\cfrac{9}{-1}`

`r=-9`