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AlgèbreFacile

Math Learning Platform

First Degree Equations

Beginner
📚 equations

📖 About this lesson

Learn to solve simple equations step by step

Lesson Content

First Degree Equations

A first degree equation is an equation where the variable is not raised to a power greater than 1.

General format

ax + b = c

Where a, b, and c are numbers, and x is the variable.

Solution method

  1. •[object Object], the variable on one side
  2. •[object Object], the equation
  3. •[object Object], your answer

Complete example

3x + 5 = 14

  1. Subtract 5: 3x = 9
  2. Divide by 3: x = 3
  3. Verification: 3(3) + 5 = 9 + 5 = 14 ✓
Practical Examples
1

Example 1

📋 Problem

Résoudre : 5x - 2 = 13

✅ Solution

x = 3

💡 Explanation

Ajouter 2 aux deux côtés : 5x = 15, puis diviser par 5 : x = 3

🎯 Leçon Suivante Suggérée

Équations Simples - Niveau 1

intermediaire
5 exercices
Suite logique

Résolvez vos premières équations du premier degré