Math Problem Statement

某车间组装儿童玩具,每件玩具需要5个甲零件和2个乙零件。组装前甲零件的数量比乙零件的数量多1倍,组 装好一定数量的玩具后,发现剩余的甲、乙零件数量相等,且再组装6件玩具后,其中一种零件恰好全部用 完。问组装前有多少个甲零件?

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations

Formulas

x = 2y
x - 5n = y - 2n
y = 3n
y - 2n - 12 = 0

Theorems

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Suitable Grade Level

Grades 9-10