Determine if Linear 2x-y=7

$2 x - y = 7$

Step 1

Solve the equation for $y$ .

Subtract $2 x$ from both sides of the equation.

$- y = 7 - 2 x$

Divide each term in $- y = 7 - 2 x$ by $- 1$ and simplify.

Divide each term in $- y = 7 - 2 x$ by $- 1$ .

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

Simplify the left side.

Dividing two negative values results in a positive value.

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

Divide $y$ by $1$ .

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

Simplify the right side.

Simplify each term.

Divide $7$ by $- 1$ .

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

Move the negative one from the denominator of $\frac{- 2 x}{- 1}$ .

$y = - 7 - 1 \cdot (- 2 x)$

Rewrite $- 1 \cdot (- 2 x)$ as $- (- 2 x)$ .

$y = - 7 - (- 2 x)$

Multiply $- 2$ by $- 1$ .

$y = - 7 + 2 x$

Step 2

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be $0$ or $1$ for each of its variables. In this case, the degree of variable $y$ is $1$ and the degree of variable $x$ is $1$ .

Linear

Determine if Linear 2x-y=7

Related Questions

Support LCMGCF.com by disabling your adblocker.