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Mathematics, 15.12.2020 20:20 starreee

The function y = 3x + 42 models the average number of dogs at an animal shelter, where x is the number of days after July 1. The function
y = 4x + 7 models the average number of cats at the animal shelter,
where x is the number of days after July 1. After how many days is the
average number of cats and dogs at the shelter the same?

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