Expressions, equations, & inequalities

This course is a part of 7th grade, a 7-course Topic series from Khan Academy.

Bring on the algebra! Learn how to manipulate expressions and solve equations and inequalities.

This course contains 8 segments:

Combining like terms

Learn how to combine like terms (with negative numbers and variables), including more complex problems involving the distributive property.

The distributive property & equivalent expressions

Learn how to factor and expand algebraic expressions (expressions with variables) by applying the distributive property.

Interpreting linear expressions

Any expression (mathematical or otherwise) has meaning. Help us match the linear expression to the meaning options given. In some cases, more than one meaning may apply.

Two-step equations intro

Learn how to solve equations like 2x+7=13 and 3(x+4)=3, which can be solved in two steps.

Two-step equations with decimals and fractions

Get some practice solving two-step equations that involve decimals and fractions

Two-step equation word problems

Learn how to set up and solve equations to find answers to real-world questions.

One-step inequalities

Learn how to solve (mathematical) inequalities. A key concept in this tutorial is flipping the inequality sign when multiplying or dividing both sides by a negative number.

Two-step inequalities

Learn how to solve more complex (mathematical) inequalities. Also learn to construct inequalities to model real-world situations.