Pre-Algebra Examples

$3 = 3 - 4 - y$

Step 1

Rewrite in slope-intercept form.

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Step 1.1

The slope-intercept form is $y = m x + b$ , where $m$ is the slope and $b$ is the y-intercept.

$y = m x + b$

Step 1.2

Simplify the right side.

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Step 1.2.1

Subtract $4$ from $3$ .

$3 = - 1 - y$

Step 1.3

Rewrite the equation as $- 1 - y = 3$ .

$- 1 - y = 3$

Step 1.4

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

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Step 1.4.1

Add $1$ to both sides of the equation.

$- y = 3 + 1$

Step 1.4.2

Add $3$ and $1$ .

$- y = 4$

Step 1.5

Divide each term in $- y = 4$ by $- 1$ and simplify.

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Step 1.5.1

Divide each term in $- y = 4$ by $- 1$ .

$\frac{- y}{- 1} = \frac{4}{- 1}$

Step 1.5.2

Simplify the left side.

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Step 1.5.2.1

Dividing two negative values results in a positive value.

$\frac{y}{1} = \frac{4}{- 1}$

Step 1.5.2.2

Divide $y$ by $1$ .

$y = \frac{4}{- 1}$

Step 1.5.3

Simplify the right side.

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Step 1.5.3.1

Divide $4$ by $- 1$ .

$y = - 4$

Step 2

Using the slope-intercept form, the slope is $0$ .

$m = 0$

Step 3