Question

How do you solve `-6( - 19y - 9) = 16y + 8( 10y - 18)`?

Answer 1

`y=-11`

Explanation:

`"distribute brackets on both sides of the equation"`

`114y+54=16y+80y-144`

`rArr114y+54=96y-144`

`"subtract 96y from both sides"`

`114y-96y+54=cancel(96y)cancel(-96y)-144`

`rArr18y+54=-144`

`"subtract 54 from both sides"`

`18ycancel(+54)cancel(-54)=-144-54`

`rArr18y=-198`

`"divide both sides by 18"`

`(cancel(18) y)/cancel(18)=(-198)/18`

`rArry=-11" is the solution"`