How do you simplify $(- x - 5y ) - ( 2x - 9y )$ ?

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Answer 1 · 2018-03-19T04:29:25

-3x+4y

I have done it
First I multiplied the minus sign with the second group in the bracket i.e. (2x-9y) .consider -1 in front of the bracket.

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How do you simplify (- x - 5y ) - ( 2x - 9y )(- x - 5y ) - ( 2x - 9y )?