Math Problem Statement
a) Luis compró algunos lápices en $7.00 y solo uno en $9.00; sí en total pagó $65.00, ¿cuántos lápices compró?
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Formulas
Linear equation formula ax + b = c
Theorems
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Suitable Grade Level
Grades 7-9
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