# Unit 3 Part 2 Overview

```Unit 3: One-Variable Equations, Inequalities, and their Applications Part 2
TEKS:
8.8A(S) write one-variable equations or inequalities with variables on both
sides that represent problems using rational number coefficients and
constants
8.8B(S) write a corresponding real-world problem when given a one-variable
equation or inequality with variables on both sides of the equal sign using
rational number coefficients and constants
8.8C(R) model and solve one-variable equations with variables on both sides
of the equal sign that represent mathematical and real-world problems using
rational number coefficients and constants
Vocabulary
Coefficient: a number that is multiplied by a variable(s)
Constant: a fixed value that does not appear with a variable(s)
Equation: a mathematical statement composed of algebraic and/or numeric expressions set equal to each other
Expression: numbers, symbols and operators (such as + and &times;) grouped together that show the value of something (no
equal or inequality symbol)
Inequality: a mathematical statement composed of algebraic and/or numeric expressions set apart by an inequality
statement
Variable: a letter or symbol that represents a number
```