Pre-Algebra Examples

$y = 3 x + 1$

Step 1

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

Step 2

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

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Step 2.1

Remove parentheses.

$y = 3 (0) + 1$

Step 2.2

Simplify $3 (0) + 1$ .

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Step 2.2.1

Multiply $3$ by $0$ .

$y = 0 + 1$

Step 2.2.2

Add $0$ and $1$ .

$y = 1$

Step 2.3

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

$(0, 1)$

Step 3

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

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Step 3.1

Remove parentheses.

$y = 3 (1) + 1$

Step 3.2

Simplify $3 (1) + 1$ .

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Step 3.2.1

Multiply $3$ by $1$ .

$y = 3 + 1$

Step 3.2.2

Add $3$ and $1$ .

$y = 4$

Step 3.3

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

$(1, 4)$

Step 4

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

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Step 4.1

Remove parentheses.

$y = 3 (2) + 1$

Step 4.2

Simplify $3 (2) + 1$ .

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Step 4.2.1

Multiply $3$ by $2$ .

$y = 6 + 1$

Step 4.2.2

Add $6$ and $1$ .

$y = 7$

Step 4.3

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

$(2, 7)$

Step 5

These are three possible solutions to the equation.

$(0, 1), (1, 4), (2, 7)$

Step 6