Question

How do you evaluate `5y - 4= - 24`?

Answer 1

`y = - 4`

Explanation:

`5y - 4 = - 24`

Collect like terms

`5y = - 24 + 4`

`5y = -20`

Divide both sides by `5`

`(5y)/5 = - 20/5`

`y = - 20/5`

`y = - 4`

Answer 2

`y=color(red)(-4)`

Explanation:

Given
`color(white)("XXX")5y-4=-24`

After adding `4` to both sides:
`color(white)("XXX")5y-4=-24`
`color(white)("XXX")ul(color(white)("xxx")+4)=ul(color(white)("x")+4)`
`color(white)("XXX")5ycolor(white)("xxx")=-20`

Then dividing both sides by `5`
`color(white)("XXX")5ycolor(white)("x')=-20`
`color(white)("XXX")ul(div5)=color(white)("x")ul(div5)`
`color(white)("XXXx")y=color(white)("xxx")-4`