Pre-Algebra Examples

$y = x - 1$

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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Choose $0$ to substitute in for $x$ .

$y = (0) - 1$

Remove the parentheses around the expression $0$ .

$y = 0 - 1$

Subtract $1$ from $0$ .

$y = - 1$

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

$(0, - 1)$

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

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Choose $1$ to substitute in for $x$ .

$y = (1) - 1$

Remove the parentheses around the expression $1$ .

$y = 1 - 1$

Subtract $1$ from $1$ .

$y = 0$

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

$(1, 0)$

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

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Choose $2$ to substitute in for $x$ .

$y = (2) - 1$

Remove the parentheses around the expression $2$ .

$y = 2 - 1$

Subtract $1$ from $2$ .

$y = 1$

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

$(2, 1)$

These are three possible solutions to the equation.

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

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