Final answer:
To add two pairs of brackets to 19+7 divided by 2-5, follow the order of operations and simplify the expression within the brackets first.
Step-by-step explanation:
To add two pairs of brackets to the expression 19+7 divided by 2-5, we need to follow the order of operations, which is parentheses, exponents, multiplication/division (from left to right), and addition/subtraction (from left to right).
So, the expression becomes: (19+7) / (2-5)
Now, let's simplify the expression within the brackets first: 26 / -3
Finally, divide 26 by -3: 26 / -3 = -8.66666667
Learn more about Order of Operations