Khan Academy (English - US curriculum)
Math by grade
Illustrative Mathematics
7th grade (Illustrative Mathematics)
Unit 6: Expressions, equations, and inequalities
Lesson 10: Different options for solving one equations
Lesson 10: Different options for solving one equations
Two-step equations with decimals and fractions
Two-step equations with decimals and fractions
Find the mistake: two-step equations
Find the mistake: two-step equations
