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4 April, 23:56

Jen and Crystal sell home theater systems. Jen earns a base salary of $2400 per month, plus $100 for each system he sells. Crystal earns a base salary of $2200 per month, plus $120 for each system she sells. How many systems do Jen and Crystal have to sell before they earn the same amount of money?

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  1. 5 April, 00:19
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    2400 + 100x = 2200 + 120x

    2400 - 2200 = 120x - 100x

    200 = 20x

    200/20 = x

    10 = x < = = they would have to sell 10 systems
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