There are 7 dogs in the animal shelter that Liz works for.
An equation is an expression used to show the relationship between two or more variables.
Let x represent the number of dogs in the animal shelter.
Since there are 20 animals in the shelter and 35% are dogs, hence:
x = 35% of 20 animals
x = 0.35 * 20
x = 7
Therefore, there are 7 dogs in the animal shelter.
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