Basic Math Examples

$\frac{1}{3.179 \cdot 10^{3}} = \frac{1}{1.017 \cdot 10^{3}} + \frac{1}{z}$

Step 1

Rewrite the equation as $\frac{1}{1.017 \cdot 10^{3}} + \frac{1}{z} = \frac{1}{3.179 \cdot 10^{3}}$ .

$\frac{1}{1.017 \cdot 10^{3}} + \frac{1}{z} = \frac{1}{3.179 \cdot 10^{3}}$

Step 2

Simplify $\frac{1}{1.017 \cdot 10^{3}} + \frac{1}{z}$ .

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Step 2.1

Divide using scientific notation.

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Step 2.1.1

Group coefficients together and exponents together to divide numbers in scientific notation.

$(\frac{1}{1.017}) (\frac{1}{10^{3}}) + \frac{1}{z} = \frac{1}{3.179 \cdot 10^{3}}$

Step 2.1.2

Divide $1$ by $1.017$ .

$0.98328416 \frac{1}{10^{3}} + \frac{1}{z} = \frac{1}{3.179 \cdot 10^{3}}$

Step 2.1.3

Move $10^{3}$ to the numerator using the negative exponent rule $\frac{1}{b^{n}} = b^{- n}$ .

$0.98328416 \cdot 10^{- 3} + \frac{1}{z} = \frac{1}{3.179 \cdot 10^{3}}$

Step 2.2

Move the decimal point in $0.98328416$ to the right by $1$ place and decrease the power of $10^{- 3}$ by $1$ .

$9.83284169 \cdot 10^{- 4} + \frac{1}{z} = \frac{1}{3.179 \cdot 10^{3}}$

Step 3

Simplify $\frac{1}{3.179 \cdot 10^{3}}$ .

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Step 3.1

Divide using scientific notation.

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Step 3.1.1

Group coefficients together and exponents together to divide numbers in scientific notation.

$9.83284169 \cdot 10^{- 4} + \frac{1}{z} = (\frac{1}{3.179}) (\frac{1}{10^{3}})$

Step 3.1.2

Divide $1$ by $3.179$ .

$9.83284169 \cdot 10^{- 4} + \frac{1}{z} = 0.31456432 \frac{1}{10^{3}}$

Step 3.1.3

Move $10^{3}$ to the numerator using the negative exponent rule $\frac{1}{b^{n}} = b^{- n}$ .

$9.83284169 \cdot 10^{- 4} + \frac{1}{z} = 0.31456432 \cdot 10^{- 3}$

Step 3.2

Move the decimal point in $0.31456432$ to the right by $1$ place and decrease the power of $10^{- 3}$ by $1$ .

$9.83284169 \cdot 10^{- 4} + \frac{1}{z} = 3.14564328 \cdot 10^{- 4}$

Step 4

Move all terms not containing $z$ to the right side of the equation.

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Step 4.1

Subtract $9.83284169 \cdot 10^{- 4}$ from both sides of the equation.

$\frac{1}{z} = 3.14564328 \cdot 10^{- 4} - 9.83284169 \cdot 10^{- 4}$

Step 4.2

Factor $10^{- 4}$ out of $3.14564328 \cdot 10^{- 4} - 9.83284169 \cdot 10^{- 4}$ .

$\frac{1}{z} = (3.14564328 - 9.83284169) \cdot 10^{- 4}$

Step 4.3

Subtract $9.83284169$ from $3.14564328$ .

$\frac{1}{z} = - 6.6871984 \cdot 10^{- 4}$

Step 5

Find the LCD of the terms in the equation.

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Step 5.1

Finding the LCD of a list of values is the same as finding the LCM of the denominators of those values.

$z, 1, 1$

Step 5.2

The LCM of one and any expression is the expression.

$z$

Step 6

Multiply each term in $\frac{1}{z} = - 6.6871984 \cdot 10^{- 4}$ by $z$ to eliminate the fractions.

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Step 6.1

Multiply each term in $\frac{1}{z} = - 6.6871984 \cdot 10^{- 4}$ by $z$ .

$\frac{1}{z} z = - 6.6871984 \cdot 10^{- 4} z$

Step 6.2

Simplify the left side.

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Step 6.2.1

Cancel the common factor of $z$ .

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Step 6.2.1.1

Cancel the common factor.

$\frac{1}{z} z = - 6.6871984 \cdot 10^{- 4} z$

Step 6.2.1.2

Rewrite the expression.

$1 = - 6.6871984 \cdot 10^{- 4} z$

Step 6.3

Simplify the right side.

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Step 6.3.1

Reorder factors in $- 6.6871984 \cdot 10^{- 4} z$ .

$1 = - 6.6871984 z \cdot 10^{- 4}$

Step 7

Solve the equation.

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Step 7.1

Rewrite the equation as $- 6.6871984 z \cdot 10^{- 4} = 1$ .

$- 6.6871984 z \cdot 10^{- 4} = 1$

Step 7.2

Divide each term in $- 6.6871984 z \cdot 10^{- 4} = 1$ by $- 6.6871984 \cdot 10^{- 4}$ and simplify.

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Step 7.2.1

Divide each term in $- 6.6871984 z \cdot 10^{- 4} = 1$ by $- 6.6871984 \cdot 10^{- 4}$ .

$\frac{- 6.6871984 z \cdot 10^{- 4}}{- 6.6871984 \cdot 10^{- 4}} = \frac{1}{- 6.6871984 \cdot 10^{- 4}}$

Step 7.2.2

Simplify the left side.

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Step 7.2.2.1

Cancel the common factor of $- 6.6871984$ .

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Step 7.2.2.1.1

Cancel the common factor.

$\frac{- 6.6871984 z \cdot 10^{- 4}}{- 6.6871984 \cdot 10^{- 4}} = \frac{1}{- 6.6871984 \cdot 10^{- 4}}$

Step 7.2.2.1.2

Rewrite the expression.

$\frac{z \cdot 10^{- 4}}{10^{- 4}} = \frac{1}{- 6.6871984 \cdot 10^{- 4}}$

Step 7.2.2.2

Cancel the common factor of $10^{- 4}$ .

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Step 7.2.2.2.1

Cancel the common factor.

$\frac{z \cdot 10^{- 4}}{10^{- 4}} = \frac{1}{- 6.6871984 \cdot 10^{- 4}}$

Step 7.2.2.2.2

Divide $z$ by $1$ .

$z = \frac{1}{- 6.6871984 \cdot 10^{- 4}}$

Step 7.2.3

Simplify the right side.

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Step 7.2.3.1

Divide using scientific notation.

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Step 7.2.3.1.1

Group coefficients together and exponents together to divide numbers in scientific notation.

$z = (\frac{1}{- 6.6871984}) (\frac{1}{10^{- 4}})$

Step 7.2.3.1.2

Divide $1$ by $- 6.6871984$ .

$z = - 0.14953945 \frac{1}{10^{- 4}}$

Step 7.2.3.1.3

Move $10^{- 4}$ to the numerator using the negative exponent rule $\frac{1}{b^{- n}} = b^{n}$ .

$z = - 0.14953945 \cdot 10^{4}$

Step 7.2.3.2

Move the decimal point in $- 0.14953945$ to the right by $1$ place and decrease the power of $10^{4}$ by $1$ .

$z = - 1.49539454 \cdot 10^{3}$

Step 8

The result can be shown in multiple forms.

Scientific Notation:

$z = - 1.49539454 \cdot 10^{3}$

Expanded Form:

$z = - 1495.39454209$