The system of equations are:
$12p + $3a = $258
a - p = 6
Where:
Two linear equations would be derived from the question. The linear equations would be a function of the phones and accessories sold. These equations are known as simultaneous equations and they would have to be solved together in order to determine the required values.
To learn more about simultaneous equations, please check: https://brainly.com/question/25875552
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