Question

How do you solve `232.5=-77.5s`?

Answer 1

s = -3

Explanation:

reverse the equation ( although not compulsory) to obtain.

`- 77.5s = 323.5`

now divide both sides by -77.5

`(cancel(-77.5)s)/cancel(-77.5) = 232.5/-77.5 rArr s = - 3`

Answer 2

`s=3`

Explanation:

Making the numbers easier: Multiply both sides by 10

`2325=-775s`

To make s positive: multiply both sides by (-1)

`775s=-2325`

To 'get s on its own' divide both sides by 775

`775/775 xx s=-2325/775`

But `775/775 = 1`

`s= -2325/775 = 3`