Trigonometry Examples

$y = 7 x - 9$

Step 1

Rewrite the equation as $7 x - 9 = y$ .

$7 x - 9 = y$

Step 2

Add $9$ to both sides of the equation.

$7 x = y + 9$

Step 3

Divide each term in $7 x = y + 9$ by $7$ and simplify.

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Step 3.1

Divide each term in $7 x = y + 9$ by $7$ .

$\frac{7 x}{7} = \frac{y}{7} + \frac{9}{7}$

Step 3.2

Simplify the left side.

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Step 3.2.1

Cancel the common factor of $7$ .

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Step 3.2.1.1

Cancel the common factor.

$\frac{7 x}{7} = \frac{y}{7} + \frac{9}{7}$

Step 3.2.1.2

Divide $x$ by $1$ .

$x = \frac{y}{7} + \frac{9}{7}$