SOLUTION: how do you distribute then combine like terms? for example: (3x-1)-(-3x-7)-9x please help !!!!!

Question 633676: how do you distribute then combine like terms? for example:
(3x-1)-(-3x-7)-9x
please help !!!!!
Found 2 solutions by jim_thompson5910, Maths68:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
(3x-1)-(-3x-7)-9x

3x-1+3x+7-9x

(3x+3x-9x)+(-1+7)

-3x+6

So the answer is -3x+6

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Answer by Maths68(1474) (Show Source): You can put this solution on YOUR website!
=(3x-1)-(-3x-7)-9x
=3x-1+3x+7-9x (Distribute)
=3x+3x-9x-1+7 (combine like terms)
=6x-9x+6
=-3x+6

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