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The expression is 2y + 2x + 8y.
\= 2y + 8y + 2x (Commutative Property: a + b = b + a)
\= (2y + 8y) + 2x (Associative Property: (a + b) + c = a + (b + c))
\= (2 + 8)y + 2x (Distributive property: a (b + c) = ab + ac)
\= 10y + 2x (Add: 2 + 8 = 10)
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The value of the expression is 10y + 2x
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