Write in y=mx+b Form 7y-21=0

$7 y - 21 = 0$

Step 1

The slope-intercept form is $y = m x + b$ , where $m$ is the slope and $b$ is the y-intercept.

$y = m x + b$

Step 2

Rewrite in slope-intercept form.

Add $21$ to both sides of the equation.

$7 y = 21$

Divide each term in $7 y = 21$ by $7$ and simplify.

Divide each term in $7 y = 21$ by $7$ .

$\frac{7 y}{7} = \frac{21}{7}$

Simplify the left side.

Cancel the common factor of $7$ .

Cancel the common factor.

$\frac{7 y}{7} = \frac{21}{7}$

Divide $y$ by $1$ .

$y = \frac{21}{7}$

Simplify the right side.

Divide $21$ by $7$ .

$y = 3$