Answer:
6x - 18
Explanation:
3(2x - 6) =
("... - 6" means that whatever we do with the 6, we have to remember that it's negative)
3(2x - 6) =
3 * 2x + 3 * (-6) =
6x + (-18) =
(if we add a negative number then it's the same as subtracting that number)
6x + (-18) = 6x - 18
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Hope i didn't make it to complicated to understand, glad to help :D
P.S. Dont be afraid to ask me a question if you didn't uderstand.