Common Core Alignment:.

6.EE.5:

Expressions And Equations

Reason About And Solve One-Variable Equations And Inequalities.

Understand solving an equation or inequality as a process of answering a question: which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true.

6.EE.8:

Expressions And Equations

Reason About And Solve One-Variable Equations And Inequalities.

Write an inequality of the form x > c or x < c to represent a constraint or condition in a real-world or mathematical problem. Recognize that inequalities of the form x > c or x < c have infinitely many solutions; represent solutions of such inequalities on number line diagrams.