https://es-cl.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities 2025-11-20T17:53:56.044440592Z Equations & inequalities Solving equations is a superpower. It means we can model a situation with an equation in any way that makes sense to us, even with an unknown value in the middle. Inequalities are for situations with many true options, like how many pages I can send in my letter using just 1 stamp. unit