Which of the following is equal to the rational expression when x=-1 or - 7? (x+1) (x-1) / (x+7) (x+1)

a. x+7/x-1

b. x-1/x+7

c. x+1/x+7

what does the word range mean

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Write two operations in order that you would use to solve the equation 3x - 2=7 then solve the equation

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