Question

How do you solve `9x - 11= - 56`?

Answer 1

`x=-5`

Explanation:

`9x-11=-56` add 11 both side

`9x-11+11=-56+11`

`9x=-45`

`x=-5`

Answer 2

`x=-5`

Explanation:

`"isolate 9x by adding 11 to both sides"`

`9xcancel(-11)cancel(+11)=-56+11`

`rArr9x=-45`

`"divide both sides by 9"`

`(cancel(9) x)/cancel(9)=(-45)/9`

`rArrx=-5`

`color(blue)"As a check"`

`(9xx-5)-11=-45-11=-56larr" True"`

`rArrx=-5" is the solution"`