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Mathematics 8 Online
OpenStudy (anonymous):

(m-3n+1)-(3m-3n) just need the answer to make sure

OpenStudy (blurbendy):

distribute the - sign to (3m -3n) m - 3n + 1 -3m + 3n = 2m + 1

OpenStudy (blurbendy):

- 2m + 1 sorry

OpenStudy (anonymous):

(-a^2+9ab-b^2)-(5a^2+ab) ?@blurbendy

OpenStudy (blurbendy):

(-a^2 + 9ab -b^2) -5a^2 - ab = -4a^2 + 8ab - b^2

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