Ais a subset of a given set of elements

Do not comment if you aren’t going to . create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

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Simplify -4z+2y-y+-18z a.-22z+y b.-14z+2 c.3y+22z d.y +14z