Question

What’s the answer to 9 - x = 15 and -252 = 21k

Answer 1

x= -6 k=-12

Explanation:

15-9 is 6. 9+6=15 9-(-6)=15 because when two negatives are together they make a positive. (--)=+ K=-21 because -252/21 is -12.

Answer 2

1)

`9 - x = 1`

`9-x-9=1-9`

`-x=-8`

`\cfrac{-x}{-1}=\cfrac{-8}{-1}`

`\boxed{x=8}`

2)

`-252 = 21k`

`21k=-252`

`\cfrac{21k}{21}=\cfrac{-252}{21}`

`\boxed{k=-12}`