Basic Math Examples

$0.05 (2 d) + 0.1 d = 4$

Step 1

Simplify $0.05 \cdot (2 d) + 0.1 d$ .

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Step 1.1

Multiply $2$ by $0.05$ .

$0.1 d + 0.1 d = 4$

Step 1.2

Add $0.1 d$ and $0.1 d$ .

$0.2 d = 4$

Step 2

Divide each term in $0.2 d = 4$ by $0.2$ and simplify.

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Step 2.1

Divide each term in $0.2 d = 4$ by $0.2$ .

$\frac{0.2 d}{0.2} = \frac{4}{0.2}$

Step 2.2

Simplify the left side.

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Step 2.2.1

Cancel the common factor of $0.2$ .

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Step 2.2.1.1

Cancel the common factor.

$\frac{0.2 d}{0.2} = \frac{4}{0.2}$

Step 2.2.1.2

Divide $d$ by $1$ .

$d = \frac{4}{0.2}$

Step 2.3

Simplify the right side.

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Step 2.3.1

Divide $4$ by $0.2$ .

$d = 20$