30-20=x 30 for the height of panther and 20in taller so u subtract 20 from 30
The average height of the northern mockingbird is found by setting up the equation N + 20 = 30 and solving for N, which results in N = 10 inches. ;
The average height of the northern mockingbird is 10 inches, found by solving the equation N + 20 = 30 , where N represents the height of the mockingbird. By subtracting 20 from both sides, we determine that N = 10 .
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