Question

How do you solve `9x = 27`?

Answer 1

`9x=27`
Divide both sides by `color(red)9`.
`implies (9x)/color(red)9=27/color(red)9`
`implies (9x)/color(red)9=(9*3)/color(red)9`
`implies (cancel9x)/cancelcolor(red)9=(cancel9*3)/cancelcolor(red)9`
`implies x=3`