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@JuniorCoelho - Rondonia, Brasil

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First-degree equation and how to solve it.

A first-degree equation is a polynomial equation in which the highest exponent of the variable is 1.

General form:

It is written as:

$ ax + b = 0 $

Where:

a and b → are known numbers (constants).

x → is the unknown variable.

What is the solution?

The solution is the value of x that makes the equation true.

How to solve (step by step):

1️⃣ Isolate the term with x:

Put the term with x alone on one side.

Move the other terms to the other side.

2️⃣ Simplify the equation:

Perform operations on both sides.

Add or subtract values.

3️⃣ Isolate the variable:

Divide both sides by the coefficient of x.

Leave x alone.

4️⃣ Find the solution:

The value obtained for x is the solution of the equation.

It makes the equality true.

Example of General Form:

Equation: $ ax + b = 0 $

Goal: find x.

Simple summary:

First-degree equation: $ ax + b = 0 $

Steps:

isolate x.

simplify.

divide.

solve.

Special case:

Usually there is one unique solution.

If any value of x works, it is an identity.

Did you know?

As equações de primeiro grau são úteis para resolver problemas do dia a dia, como cálculos de custos, descontos, porcentagens, planejamento financeiro, entre outros. São frequentemente usadas em ciências e engenharia para modelar relações lineares entre variáveis e analisar comportamentos e tendências. Então não deixem de estudar e aprender sobre as equações de primeiro grau. by ＠RosanaChax, Portugal

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