# How do you write the expression for: Six times the sum of a number and 15 is -42?

Apr 26, 2017

$6 \left(x + 15\right) = - 42$ Your equation. See explanation for solution

#### Explanation:

$- 42 = 6 \left(x + 15\right)$ x is your unknown number.

Therefore you can solve easily:

$- \frac{42}{6} = x + 15$
$- 7 = x + 15$
$- 7 - 15 = x$
$- 22 = x$

Your answer is $x = - 22$