Trigonometry Examples

$x + 4 x + 5 x - 18 = 180$

Step 1

Simplify $x + 4 x + 5 x - 18$ .

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Step 1.1

Add $x$ and $4 x$ .

$5 x + 5 x - 18 = 180$

Step 1.2

Add $5 x$ and $5 x$ .

$10 x - 18 = 180$

Step 2

Graph each side of the equation. The solution is the x-value of the point of intersection.

$x \approx 19.8$

Step 3