Pre-Algebra Examples

$y = 2 x - 5$

Choose any value for $x$ that is in the domain to plug into the equation.

Choose $0$ to substitute in for $x$ to find the ordered pair.

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Remove parentheses.

$y = 2 (0) - 5$

Simplify $2 (0) - 5$ .

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Multiply $2$ by $0$ .

$y = 0 - 5$

Subtract $5$ from $0$ .

$y = - 5$

Use the $x$ and $y$ values to form the ordered pair.

$(0, - 5)$

Choose $1$ to substitute in for $x$ to find the ordered pair.

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Remove parentheses.

$y = 2 (1) - 5$

Simplify $2 (1) - 5$ .

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Multiply $2$ by $1$ .

$y = 2 - 5$

Subtract $5$ from $2$ .

$y = - 3$

Use the $x$ and $y$ values to form the ordered pair.

$(1, - 3)$

Choose $2$ to substitute in for $x$ to find the ordered pair.

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Remove parentheses.

$y = 2 (2) - 5$

Simplify $2 (2) - 5$ .

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Multiply $2$ by $2$ .

$y = 4 - 5$

Subtract $5$ from $4$ .

$y = - 1$

Use the $x$ and $y$ values to form the ordered pair.

$(2, - 1)$

These are three possible solutions to the equation.

$(0, - 5), (1, - 3), (2, - 1)$

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