6. the abc book club charges a $40 monthly fee, plus $2 per book read in that month. the easy book club charges a $35 monthly fee, plus $3 per book read in that month. for each club, how many books must be read in 1 month for the total charges from each club to be equal?

The expression for the cost of the ABC Book Club is 2x + 40.  The expression for the cost of the Easy Book Club is 3x + 35.  To find when the total charge for both book clubs is equal, the two expressions must equal each other. (x = the number of books read)

2x + 40 = 3x + 35

Subtract 35 from both sides.

2x + 5 = 3x

Subtract 2x from both sides.

5 = x

So, the total charge for each club is equal when 5 books are read.

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