Evaluate: $-\left(14\div 2\cdot 9-60+3\cdot 9\right)$.
I see that this problem involves order of operations, or PEMDAS, which means I need to do parentheses, exponents, multiplication and division, and addition and subtraction in that order. Inside the parentheses, I can simplify the expression by doing the multiplication and division first, and then the addition and subtraction. I start by doing 14 divided by 2, which is 7. Then I do 7 times 9, which is 63. So far, I have $-\left(63-60+3\cdot 9\right)$. Next, I do 3 times 9, which is 27. Now I have $-\left(63-60+27\right)$. Then I do 63 minus 60, which is 3. Now I have $-\left(3+27\right)$. Finally, I do 3 plus 27, which is 30. So I have $-\left(30\right)$. This means I need to multiply -1 by 30, which gives me -30 as the final answer. 