How do you solve 5( 6+ 3f ) = - 2( 3- 3f )?

May 22, 2017

$f = - 4$

Explanation:

Multiply $5$ to $\left(6 + 3 f\right)$. It will give

$30 + 15 f$

On the other side, multiply $- 2$ to $\left(3 - 3 f\right)$. It will give

$- 6 + 6 f$

So,

$30 + 15 f = - 6 + 6 f$

Bring the $f$ terms on one side

$15 f - 6 f = - 6 + - 30$

$9 f = - 36$

Now divide each side by $9$

$f = - \frac{36}{9}$

$f = - 4$