Finite Math Examples

$x + x + 18 = 4 x$

Step 1

Subtract $4 x$ from both sides of the equation.

$x + x + 18 - 4 x = 0$

Step 2

Simplify $x + x + 18 - 4 x$ .

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Step 2.1

Add $x$ and $x$ .

$2 x + 18 - 4 x = 0$

Step 2.2

Subtract $4 x$ from $2 x$ .

$- 2 x + 18 = 0$

$- 2 x + 18 = 0$

Step 3

Factor $2$ out of $- 2 x + 18$ .

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Step 3.1

Factor $2$ out of $- 2 x$ .

$2 (- x) + 18 = 0$

Step 3.2

Factor $2$ out of $18$ .

$2 (- x) + 2 (9) = 0$

Step 3.3

Factor $2$ out of $2 (- x) + 2 (9)$ .

$2 (- x + 9) = 0$

$2 (- x + 9) = 0$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$