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Membership to a music club costs $120. members pay $20 per music lesson and nonmembers pay $35 per music lesson. How many music lessons would have to be taken for the cost to be the same for members and nonmembers? ​

 Jan 30, 2020
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Let  x  =  number of lessons

 

Members:  120 + 20x

Non-members:  35x

 

For them to be equal:     120 + 20x  =  35x

                                                 120  =  15x                      [subtract 20x from both sides]

                                                     8  =  x                          [divide both sides by 15]

 Jan 30, 2020

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