Algebra Examples

$y = 2 x + 7$

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.

$y = 2 (0) + 7$

Simplify $2 (0) + 7$ .

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Multiply $2$ by $0$ .

$y = 0 + 7$

Add $0$ and $7$ .

$y = 7$

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

$(0, 7)$

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

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Remove parentheses.

$y = 2 (1) + 7$

Simplify $2 (1) + 7$ .

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Multiply $2$ by $1$ .

$y = 2 + 7$

Add $2$ and $7$ .

$y = 9$

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

$(1, 9)$

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

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Remove parentheses.

$y = 2 (2) + 7$

Simplify $2 (2) + 7$ .

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Multiply $2$ by $2$ .

$y = 4 + 7$

Add $4$ and $7$ .

$y = 11$

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

$(2, 11)$

These are three possible solutions to the equation.

$(0, 7), (1, 9), (2, 11)$

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