Here's a nifty word problem in which we find the dimensions of a garden given only the perimeter. Sal Khan creates an equation to solve. [2:02]

Let's practice some two step equations, some of which require merging terms and using the distributive property. [13:50]

Students watch a video lesson that demonstrates how to graph a system of linear inequalities. The tutorial includes a detailed example and a quiz follows to test students' understanding of the skill. [5:55]

Take a look at this tutorial to see how to find the values that make an open sentence true. [5:59]

Try several practice two-step equation word problems. Answer correctly and move on; answer incorrectly and Khan Academy provides relevant tutorials.

Learn how to construct and solve a basic linear equation to solve a word problem. [4:46]

Linear inequalities can be represented both graphically and algebraically. In this video, you will learn how to express linear inequalities as an equation and on a number line. [8:15]

In the period after the Civil War in the American South, when Southern society reorganized to account for the end of slavery. In this video, Kim discusses how many Southern governments passed laws preventing African Americans from...

This video [8:17] discussed the issues when r is greater than g but less inequality.

This video [5:45] looks critically at data on price rate of change (ROC) and economic growth over millennia.

This video [3:52] discusses the main points of the book "Capital in the Twenty-First Century" by economist Thomas Piketty.

This video discusses what Thomas Piketty refers to as forces of convergence - things that might make the world a more equal place. [3:24]

'It's a truly participatory work,' says artist Suzanne Lacy of her performance Silver Action, in which hundreds of women over sixty gathered within the gallery, shared their stories of activism and protest, and drew the audience in. [3:55]

A televised interview with author John Perkins as he shares both personal and national work towards racial justice. [57:29]

This lesson relates inequalities to equations. It is 2 of 6 in the series titled "Equations and Inequalities."

This lesson relates inequalities to equations. It is 6 of 6 in the series titled "Equations and Inequalities."

This lesson shows how an inequality can be determined from a graph. It is 8 of 10 in the series titled "Finding an Inequality from a Graph."

This lesson demonstrates how to use inequalities to represent information (i.e. verbal, graphical, etc.). It is 1 of 5 in the series titled "Representing with Inequalities."

During this lesson, you'll see how to multiply or divide by a negative number in order to solve an algebraic inequality. It is 2 of 9 in the series titled "Reversing the Sign in Inequalities."

During this lesson, you'll see how to multiply or divide by a negative number in order to solve an algebraic inequality. It is 3 of 9 in the series titled "Reversing the Sign in Inequalities."

During this lesson, you'll see how to multiply or divide by a negative number in order to solve an algebraic inequality. It is 7 of 9 in the series titled "Reversing the Sign in Inequalities."

During this lesson, you'll see how to multiply or divide by a negative number in order to solve an algebraic inequality. It is 1 of 9 in the series titled "Reversing the Sign in Inequalities."

This lesson shows how the graphs of inequality with absolute values should be shaded. It is 10 of 10 in the series titled "Shading Absolute Value Inequalities."

This lesson shows how the graphs of inequality with absolute values should be shaded. It is 2 of 10 in the series titled "Shading Absolute Value Inequalities."