Question

How do you solve `7- s = - 2s`?

Answer 1

`7-s=2s`

Add `s` to `-2s` to get

`7=-1s`

Divide by `-1` on both sides to get

`-7=s`

Answer 2

-7

Explanation:

first take all the s terms to one side:
7 = -`2s` + `s`
7 = -`s`
therefore
`s` = -7