Exercises: Create Equations and Inequalities in One Variable

Work through each section in order. For word problems, define your variable before writing any equation or inequality.

Grade 9·21 problems·~35 min·Common Core Math - HS Algebra·standard·hsa-ced-a-1

Work through problems with immediate feedback

Warm-Up: Review What You Know

These problems review skills from earlier courses.

A recipe uses a certain number of cups of flour. After using 2 cups, 5 cups remain. Which statement best defines the variable for this problem?

Let $x$ = flour.

Let $x$ = the total cups of flour in the recipe, in cups.

Let $x$ = 7.

Let $x$ = the amount used.