Finite Math Examples

$f (x) = 6 x - 18$

Step 1

Set $6 x - 18$ equal to $0$ .

$6 x - 18 = 0$

Step 2

Solve for $x$ .

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Step 2.1

Add $18$ to both sides of the equation.

$6 x = 18$

Step 2.2

Divide each term in $6 x = 18$ by $6$ and simplify.

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Step 2.2.1

Divide each term in $6 x = 18$ by $6$ .

$\frac{6 x}{6} = \frac{18}{6}$

Step 2.2.2

Simplify the left side.

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Step 2.2.2.1

Cancel the common factor of $6$ .

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Step 2.2.2.1.1

Cancel the common factor.

$\frac{6 x}{6} = \frac{18}{6}$

Step 2.2.2.1.2

Divide $x$ by $1$ .

$x = \frac{18}{6}$

Step 2.2.3

Simplify the right side.

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Step 2.2.3.1

Divide $18$ by $6$ .

$x = 3$

Step 3

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