Expressions, Equations and Inequalities
Generate equivalent expressions and solve real-life and mathematical problems using algebraic expressions and equations.
In this lesson, students use properties of operations to generate equivalent expressions and solve real-life and mathematical problems using numerical and algebraic expressions and equations.
Apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with rational coefficients.
Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related.
Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.
Working with rational coefficients
Rational coefficients
Problems relating to percentages
Percentages
Equation
Techniques of Solving equations
Hanger diagrams
Understanding Hanger diagrams
Solving equations
Equations relating quantities
Inequalities in the negative direction
Inequalities
Inequalities with negative coefficient