Question

How do you solve `2= \frac { b - 1} { 4}`?

Answer 1

`b=9`

Explanation:

Multiply both sides by `4`

`8=b-1`

Add `1` to each end

`b=9`

Answer 2

`b=9`

Explanation:

`"multiply both sides by 4"`

`4xx2=cancel(4)xx(b-1)/cancel(4)`

`rArrb-1=8`

`"add 1 to both sides"`

`bcancel(-1)cancel(+1)=8+1`

`rArrb=9`

`(9-1)/4=8/4=2larr"check"`