Linear equations

Parentheses, fractions, word problems, inequalities and literal equations

The Linear equations unit belongs to the Elementary algebra section of Math Mental and has 14 lessons: parentheses, fractions, word problems, inequalities and literal equations.

Practice this unit

Sample questions

In the lesson, numbers change every session and the solution appears after you answer.

$3(x - 2) = 2x + 5$
Step by step
1. $\displaystyle 3x - 6 = 2x + 5$
2. $\displaystyle x = 11$
Answer $x = 11$
$\frac{x}{2} + \frac{x}{3} = 10$
Step by step
1. $\displaystyle 3x + 2x = 60$
2. $\displaystyle 5x = 60$
Answer $x = 12$
$x + (x + 12) = 50$
Step by step
1. $\displaystyle 2x + 12 = 50$
2. $\displaystyle 2x = 38$
Answer $x = 19$

Lessons in this unit

Isolating the unknown Lesson, 8 questions
Unknown on both sides Lesson, 8 questions
Equations with parentheses Lesson, 8 questions
Parentheses on both sides Lesson, 8 questions
Signs before parentheses Lesson, 8 questions
Equations with fractions Lesson, 8 questions
Fractions and the LCM Lesson, 8 questions
Practice: parentheses and fractions Practice, 10 questions
Problems: prices and perimeters Lesson, 8 questions
Problems: ages and consecutive numbers Lesson, 8 questions
Linear inequalities Lesson, 8 questions
Inequalities and intervals Lesson, 8 questions
Literal equations Lesson, 8 questions
Unit test 12 questions

Your first lesson takes five minutes

Create an account, pick where to start and keep your streak from today.

Start learning

Sample questions

Step by step

Step by step

Step by step

Lessons in this unit

Your first lesson takes five minutes