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QUESTION

2x. -5 when X equals 3?

##1##

To evaluate ##2x-5## at ##x=3##, we replace every instance of ##x## in the given expression with a ##3##.

##2color(red)(x)-5 -> 2color(red)((3))-5##

Then we evaluate the new expression.

##2(3)-5 = 6-5 = 1##

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