Distribute and simplify

Work through it

1. 1

   6x - 15 + 4

   Multiply 3 by each term inside the parentheses. This uses the distributive property.

2. 2

   6x + (-15 + 4)

   The constants are like terms, so combine them while leaving 6x unchanged.

3. 3

   6x - 11

   Adding 4 to -15 gives -11.