📐 MathLevel 10 — 🔵 IntermediateAlgebra👁 18 views⏱ 1 min read
Giải: Tìm số tự nhiên x biết: 15 imes (x - 7) = 21…
📝 Problem
Tìm số tự nhiên biết: $15 imes (x - 7) = 210$.✨Detailed Solution
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