# How do you solve 7( n - 7 ) = n - 3 1?

Oct 13, 2016

$n = - 3$

#### Explanation:

$7 \left(n - 7\right) = n - 31$

$1.$ Expand the brackets:

$7 n - 49 = n - 31$

$2.$ Bring all the unknown values to one side of the equation:

$6 n = - 18$

$3.$ Solve for the unknown

$n = \frac{- 18}{6} = - 3$