/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 40 Solve the equation for \(x\). ... [FREE SOLUTION] | 91Ó°ÊÓ

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Solve the equation for \(x\). \(\log 3 x=\log 6\)

Short Answer

Expert verified
The solution is \(x = 2\).

Step by step solution

01

Understand the Problem

We are given the equation \(\log 3x = \log 6\). We understand that this involves logarithms, and when two logarithms with the same base are equal, their arguments must also be equal.
02

Equate the Arguments

Since \(\log 3x = \log 6\), we can equate the arguments of the logarithms: \(3x = 6\).
03

Solve for \(x\)

To find the value of \(x\), we divide both sides of the equation by 3: \(x = \frac{6}{3}\). This simplifies to \(x = 2\).

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Logarithms
Logarithms are a way to describe the relationship between numbers. They give us the power to which a base, often 10 or `e`, must be raised to produce a certain number. For example, in the expression \(\log_b a = c\), \(b\) is the base, \(a\) is the argument, and \(c\) is the result or the exponent. This equation tells us that \(b^c = a\).
When solving logarithmic equations, it is crucial to understand that if \(\log_b x = \log_b y\), then the arguments \(x\) and \(y\) must be equal, provided the base \(b\) is the same on both sides of the equation. This property helps to simplify complex logarithmic problems.
Understanding basic logarithmic properties like the product rule, quotient rule, and power rule can help in extending this concept. These rules state the following:
  • Product Rule: \(\log_b (xy) = \log_b x + \log_b y\)
  • Quotient Rule: \(\log_b \left(\frac{x}{y}\right) = \log_b x - \log_b y\)
  • Power Rule: \(\log_b (x^y) = y \cdot \log_b x\)
These rules can simplify expressions and make equations easier to manage.
Algebra
Algebra is a fundamental branch of mathematics dealing with symbols and the rules for manipulating these symbols. It helps in solving equations and expressing mathematical relationships.
One key aspect of algebra is understanding how to handle equations and move terms around while maintaining equality. When solving simple algebraic equations like \(3x = 6\), the objective is to isolate the variable \(x\) on one side of the equation.
To do this, we use basic algebraic operations like addition, subtraction, multiplication, and division. In our example, dividing both sides by 3 isolates \(x\), showing that \(x = 2\). This operation demonstrates the balance method where what you do to one side of the equation, you must do to the other.
Understanding how to manipulate equations efficiently is a key skill in algebra. It lays the groundwork for advanced topics and helps solve real-world problems.
Equation Solving
Equation solving involves finding the value of the unknown variable that makes the equation true. When you solve an equation, you are effectively finding the balance point or solution for the equation.
In our example, given the equation \(\log 3x = \log 6\), the goal was to find \(x\). By understanding that the arguments must be equal, we derived the simpler equation \(3x = 6\).
From this point, we applied basic arithmetic operations. Divide both sides by 3 to get \(x = \frac{6}{3}\), simplifying to \(x = 2\). Each step involves logical and systematic reasoning, ensuring that the solution is consistent with the original problem.
To ensure an accurate solution, always double-check each step of your calculations. Confirm that each manipulation follows logical rules and check your final answer by substituting back into the original equation to verify.

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Most popular questions from this chapter

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