Mark M. answered 02/02/18
Tutor
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Mathematics Teacher - NCLB Highly Qualified
Well, it is not a question, so there is not an answer.
The direction is to "simplify," meaning rewrite with as few symbols as possible
(4x + 8y) - (11x - 2y + 7)
4x + 8y - 11x + 2y - 7
-7x + 10y - 7