Algebra Examples

$- x - 3 = 0$

Step 1

Solve the equation for $y$ .

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Step 1.1

Add $3$ to both sides of the equation.

$- x = 3$

Step 1.2

Divide each term in $- x = 3$ by $- 1$ and simplify.

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Step 1.2.1

Divide each term in $- x = 3$ by $- 1$ .

$\frac{- x}{- 1} = \frac{3}{- 1}$

Step 1.2.2

Simplify the left side.

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Step 1.2.2.1

Dividing two negative values results in a positive value.

$\frac{x}{1} = \frac{3}{- 1}$

Step 1.2.2.2

Divide $x$ by $1$ .

$x = \frac{3}{- 1}$

Step 1.2.3

Simplify the right side.

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Step 1.2.3.1

Divide $3$ by $- 1$ .

$x = - 3$

Step 2

Since $x = - 3$ is a vertical line, the x-values are $- 3$ for any value of y. Choose any three y-values to obtain three solutions.

$(- 3, 0), (- 3, 1), (- 3, 2)$

Step 3