Find the value of given expression

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which  best  describes the transformation from the graph of  f(x) =  x2  to the graph of  f(x) = (x  – 3)2  – 1?   left 3 units, down 1 unitleft 3 units, up 1 unitright 3 units, down 1 unit  right 3 units, up 1 unit

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is