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Solve the equation.
__________
Identity
The sense of self, including personal qualities, beliefs, values, and perceptions, which distinguishes an individual from others.
Formal-operations Stage
The final stage of Piaget's theory of cognitive development, starting around age 12, where abstract, logical, and systematic thinking becomes possible.
Concrete-operations Stage
The stage in Piaget's theory of cognitive development, from ages 7 to 11, when children gain a better understanding of mental operations and can think logically about concrete events.
Systematic Strategy
An organized, methodical plan of action designed to achieve a specific goal or solve a particular problem.
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