❤️MathFollowMeandPracticeeveryday💯🤔️跟我一起做💯🌹Toplctoday：Pre-Ca

❤️Math Follow Me and Practice everyday 💯

🤔️跟我一起做💯

🌹Toplc today：Pre- Calculus，Absolute Value预备微积分，绝对值问题

🔑Key words

▶️equations等式，方程

▶️inequality不等式

▶️real numbers实数

▶️denote表示