Question

How do you solve `47=w-(-8)`?

Answer 1

Add `(-8)` (or subtract `(+8)` from both sides to get
`color(white)("XXX")w=39`

Explanation:

`47=w-(-8)`

`rarr 47color(blue)(+(-8))=wcancel(-(-8)) cancel(color(blue)(+(-8)))`

`rarr 39 = wcolor(white)("XXX")orcolor(white)("XXX")w=39`

Answer 2

`w=39`

Explanation:

`47=w-(-8)`

or

`w+8=47`

or

`w=47-8`

or

`w=39`