Question

How do you simplify `18 + 6(9k - 13)`?

Answer 1

`54k-60`

Explanation:

Before adding we must multiply each of the terms inside the bracket by 6. The `color(blue)"distributive law"`

`rArr6(9k-13)=(6xx9k)+(6xx-13)=54k-78`

`rArr18+6(9k-13)=18+54k-78=54k-60`