Calculus Examples

$\ln (3 x - 2) = 0$

Step 1

To solve for $x$ , rewrite the equation using properties of logarithms.

$e^{\ln (3 x - 2)} = e^{0}$

Step 2

Rewrite $\ln (3 x - 2) = 0$ in exponential form using the definition of a logarithm. If $x$ and $b$ are positive real numbers and $b \neq 1$ , then $\log_{b} (x) = y$ is equivalent to $b^{y} = x$ .

$e^{0} = 3 x - 2$

Step 3

Solve for $x$ .

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Step 3.1

Rewrite the equation as $3 x - 2 = e^{0}$ .

$3 x - 2 = e^{0}$

Step 3.2

Anything raised to $0$ is $1$ .

$3 x - 2 = 1$

Step 3.3

Move all terms not containing $x$ to the right side of the equation.

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Step 3.3.1

Add $2$ to both sides of the equation.

$3 x = 1 + 2$

Step 3.3.2

Add $1$ and $2$ .

$3 x = 3$

Step 3.4

Divide each term in $3 x = 3$ by $3$ and simplify.

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Step 3.4.1

Divide each term in $3 x = 3$ by $3$ .

$\frac{3 x}{3} = \frac{3}{3}$

Step 3.4.2

Simplify the left side.

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Step 3.4.2.1

Cancel the common factor of $3$ .

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Step 3.4.2.1.1

Cancel the common factor.

$\frac{3 x}{3} = \frac{3}{3}$

Step 3.4.2.1.2

Divide $x$ by $1$ .

$x = \frac{3}{3}$

Step 3.4.3

Simplify the right side.

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Step 3.4.3.1

Divide $3$ by $3$ .

$x = 1$