Algebra Examples

$a_{n} = 16 {(- 90)}^{n - 1}$

Step 1

Solve the equation for $n$ .

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Step 1.1

Subtract $16 {(- 90)}^{n - 1}$ from both sides of the equation.

$a_{n} - 16 {(- 90)}^{n - 1} = 0$

Step 1.2

Subtract $a_{n}$ from both sides of the equation.

$- 16 {(- 90)}^{n - 1} = - a_{n}$

Step 2

Simplify the right side.

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Step 2.1

Multiply $16$ by $- 1$ .

$- 16 {(- 90)}^{n - 1} = - 16 {(- 90)}^{n - 1}$