How do you simplify $(11y) * 5$ ?

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Answer 1 · 2015-09-11T11:51:44

$(11y)*5 = 55y$

$11y$ means $11xxy$

$(11y)*5$ means $11xxyxx5$

By the commutative property
$=11xx5xxy$

and since $11xx5 = 55$
$=55xxy$
or
$55y$

How do you simplify (11y) * 5(11y) * 5?