Calculus Examples

$\ln ((90000 {(1 + 0.0158)}^{x}) - \frac{2334.6 ({(1 + 0.0158)}^{x} - 1)}{0.0158}) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1

Simplify $\ln ((90000 {(1 + 0.0158)}^{x}) - \frac{2334.6 ({(1 + 0.0158)}^{x} - 1)}{0.0158})$ .

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Step 1.1

Simplify each term.

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Step 1.1.1

Add $1$ and $0.0158$ .

$\ln (90000 \cdot {1.0158}^{x} - \frac{2334.6 ({(1 + 0.0158)}^{x} - 1)}{0.0158}) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.2

Add $1$ and $0.0158$ .

$\ln (90000 \cdot {1.0158}^{x} - \frac{2334.6 ({1.0158}^{x} - 1)}{0.0158}) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.3

Factor $0.0158$ out of $0.0158$ .

$\ln (90000 \cdot {1.0158}^{x} - \frac{2334.6 ({1.0158}^{x} - 1)}{0.0158 (1)}) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.4

Separate fractions.

$\ln (90000 \cdot {1.0158}^{x} - (\frac{2334.6}{0.0158} \cdot \frac{{1.0158}^{x} - 1}{1})) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.5

Divide $2334.6$ by $0.0158$ .

$\ln (90000 \cdot {1.0158}^{x} - (147759.49367088 \frac{{1.0158}^{x} - 1}{1})) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.6

Divide ${1.0158}^{x} - 1$ by $1$ .

$\ln (90000 \cdot {1.0158}^{x} - (147759.49367088 ({1.0158}^{x} - 1))) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.7

Apply the distributive property.

$\ln (90000 \cdot {1.0158}^{x} - (147759.49367088 \cdot {1.0158}^{x} + 147759.49367088 \cdot - 1)) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.8

Multiply $147759.49367088$ by $- 1$ .

$\ln (90000 \cdot {1.0158}^{x} - (147759.49367088 \cdot {1.0158}^{x} - 147759.49367088)) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.9

Apply the distributive property.

$\ln (90000 \cdot {1.0158}^{x} - (147759.49367088 \cdot {1.0158}^{x}) - - 147759.49367088) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.10

Multiply $147759.49367088$ by $- 1$ .

$\ln (90000 \cdot {1.0158}^{x} - 147759.49367088 \cdot {1.0158}^{x} - - 147759.49367088) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.1.11

Multiply $- 1$ by $- 147759.49367088$ .

$\ln (90000 \cdot {1.0158}^{x} - 147759.49367088 \cdot {1.0158}^{x} + 147759.49367088) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 1.2

Subtract $147759.49367088 \cdot {1.0158}^{x}$ from $90000 \cdot {1.0158}^{x}$ .

$\ln (- 57759.49367088 \cdot {1.0158}^{x} + 147759.49367088) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$

Step 2

Simplify $\ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$ .

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Step 2.1

Multiply $- 90000$ by $0.85$ .

$\ln (- 57759.49367088 \cdot {1.0158}^{x} + 147759.49367088) = \ln ((90000 - 76500) \cdot {(1 - 0.008165)}^{x - 12})$

Step 2.2

Subtract $76500$ from $90000$ .

$\ln (- 57759.49367088 \cdot {1.0158}^{x} + 147759.49367088) = \ln (13500 \cdot {(1 - 0.008165)}^{x - 12})$

Step 2.3

Subtract $0.008165$ from $1$ .

$\ln (- 57759.49367088 \cdot {1.0158}^{x} + 147759.49367088) = \ln (13500 \cdot {0.991835}^{x - 12})$

Step 3

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

No solution