Basic Math Examples

$4 = - b - 12$

Step 1

Rewrite the equation as

$- b - 12 = 4$ .

$- b - 12 = 4$

Step 2

Move all terms not containing

$b$ to the right side of the equation.

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Step 2.1

Add

$12$ to both sides of the equation.

$- b = 4 + 12$

Step 2.2

Add

$4$ and

$12$ .

$- b = 16$

Step 3

Divide each term in

$- b = 16$ by

$- 1$ and simplify.

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Step 3.1

Divide each term in

$- b = 16$ by

$- 1$ .

$\frac{- b}{- 1} = \frac{16}{- 1}$

Step 3.2

Simplify the left side.

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Step 3.2.1

Dividing two negative values results in a positive value.

$\frac{b}{1} = \frac{16}{- 1}$

Step 3.2.2

Divide

$b$ by

$1$ .

$b = \frac{16}{- 1}$

Step 3.3

Simplify the right side.

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Step 3.3.1

Divide

$16$ by

$- 1$ .

$b = - 16$