Precalculus Examples

$90 + \frac{π}{10} + x = 180$

Step 1

Subtract $90$ from both sides of the equation.

$\frac{π}{10} + x = 180 - 90$

Step 2

Subtract $\frac{π}{10}$ from both sides of the equation.

$x = 180 - 90 - \frac{π}{10}$

Step 3

Subtract $90$ from $180$ .

$x = 90 - \frac{π}{10}$

Step 4

The result can be shown in multiple forms.

Exact Form:

$x = 90 - \frac{π}{10}$

Decimal Form:

$x = 89.68584073 \dots$