Examlex
Solve the problem.
-x represents the number of textbooks purchased at $30 per book, and y represents the total amount ofmoney spent on textbooks. After writing an equation for this situation, what is the cost of 3 textbooks?
Aging
The process of becoming older, a natural part of life characterized by gradual changes in physical, cognitive, and social functioning.
Geropsychology
The field of psychology concerned with the mental health of elderly people.
Aging
The process of becoming older, which involves changes in the biological, psychological, and social structures of individuals over time.
Mental Health
A state of well-being in which an individual realizes their own abilities, can cope with the normal stresses of life, can work productively, and is able to make a contribution to their community.
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