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5 votes
Simplify (x-y 1)-(x y-1)

User Evilcelery
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2 Answers

5 votes

Answer: the correct answer is -2y+2

User TheCarver
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(x - y + 1) - (x + y - 1) = x - y + 1 - x - y + 1 = -2y + 2
User Chuck Smith
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