Simplify the following, show steps and identities $($add rows as needed$).$ Please don't use Absorption Law.

$a+b+ab=$

$\backslash$table$[[$Step$,$Identity$],[a+b+ab,$Original$],[=,],[=,],[,]]$

$xy+x{y}^{\text{'}}=$

$\backslash$table$[[$Step$,$Identity$],[$xy $+$ xy$\text{'},$Original$],[=,],[=,],[,]]$