3(6x+7)+7x

1 answer

To simplify the expression 3(6x+7)+7x, we need to distribute the 3 to both terms inside the parentheses:

3(6x) + 3(7) + 7x
18x + 21 + 7x

Now combine like terms:

18x + 7x + 21
25x + 21

So, 3(6x+7)+7x simplifies to 25x + 21.