Find Three Ordered Pair Solutions x-2y=-7

$x - 2 y = - 7$

Step 1

Solve the equation for $y$ .

Subtract $x$ from both sides of the equation.

$- 2 y = - 7 - x$

Divide each term in $- 2 y = - 7 - x$ by $- 2$ and simplify.

Divide each term in $- 2 y = - 7 - x$ by $- 2$ .

$\frac{- 2 y}{- 2} = \frac{- 7}{- 2} + \frac{- x}{- 2}$

Simplify the left side.

Cancel the common factor of $- 2$ .

Cancel the common factor.

$\frac{- 2 y}{- 2} = \frac{- 7}{- 2} + \frac{- x}{- 2}$

Divide $y$ by $1$ .

$y = \frac{- 7}{- 2} + \frac{- x}{- 2}$

Simplify the right side.

Simplify each term.

Dividing two negative values results in a positive value.

$y = \frac{7}{2} + \frac{- x}{- 2}$

Dividing two negative values results in a positive value.

$y = \frac{7}{2} + \frac{x}{2}$

Step 2

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

Step 3

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

Remove parentheses.

$y = \frac{7}{2} + \frac{0}{2}$

Simplify $\frac{7}{2} + \frac{0}{2}$ .

Combine the numerators over the common denominator.

$y = \frac{7 + 0}{2}$

Add $7$ and $0$ .

$y = \frac{7}{2}$

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

$(0, \frac{7}{2})$

Step 4

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

Remove parentheses.

$y = \frac{7}{2} + \frac{1}{2}$

Simplify $\frac{7}{2} + \frac{1}{2}$ .

Combine the numerators over the common denominator.

$y = \frac{7 + 1}{2}$

Simplify the expression.

Add $7$ and $1$ .

$y = \frac{8}{2}$

Divide $8$ by $2$ .

$y = 4$

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

$(1, 4)$

Step 5

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

Remove parentheses.

$y = \frac{7}{2} + \frac{2}{2}$

Simplify $\frac{7}{2} + \frac{2}{2}$ .

Combine the numerators over the common denominator.

$y = \frac{7 + 2}{2}$

Add $7$ and $2$ .

$y = \frac{9}{2}$

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

$(2, \frac{9}{2})$

Step 6

These are three possible solutions to the equation.

$(0, \frac{7}{2}), (1, 4), (2, \frac{9}{2})$

Step 7

Find Three Ordered Pair Solutions x-2y=-7

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